Comrak-py

* Simplify anchorize() by kornelski in https://github.com/kivikakk/comrak/pull/297
* Use footnote name for reference id by digitalmoksha in https://github.com/kivikakk/comrak/pull/300
* Escape footnote name by digitalmoksha in https://github.com/kivikakk/comrak/pull/308
* Add in-doc labels for public facing features by CosmicHorrorDev in https://github.com/kivikakk/comrak/pull/304
* build(deps): bump xml-rs from 0.8.4 to 0.8.14 by dependabot in https://github.com/kivikakk/comrak/pull/312
* Handle footnote names that have been parsed into multiple nodes by digitalmoksha in https://github.com/kivikakk/comrak/pull/311
* Sync with cmark-gfm-0.29.0.gfm.3 by digitalmoksha in https://github.com/kivikakk/comrak/pull/313
* Sync with cmark-gfm-0.29.0.gfm.4 by digitalmoksha in https://github.com/kivikakk/comrak/pull/314
* Sync with cmark-gfm-0.29.0.gfm.5 by digitalmoksha in https://github.com/kivikakk/comrak/pull/315
* Fix backslash in a link issue by vpetrigo in https://github.com/kivikakk/comrak/pull/317
* Sync with cmark-gfm-0.29.0.gfm.7 by digitalmoksha in https://github.com/kivikakk/comrak/pull/318
* Rename `ComrakFoo` types to just `Foo` for easier usage by tgross35 in https://github.com/kivikakk/comrak/pull/320
* Make `ComrakExtensionOptions` non-exhaustive by CosmicHorrorDev in https://github.com/kivikakk/comrak/pull/305
* Add builder derive and non_exhaustive for option structs by YJDoc2 in https://github.com/kivikakk/comrak/pull/292
* add PartialEq and Eq derive for Ast and its components by YJDoc2 in https://github.com/kivikakk/comrak/pull/322
* Sync with cmark-gfm-0.29.0.gfm.11 by digitalmoksha in https://github.com/kivikakk/comrak/pull/319
* Fix autolink detection inside wiki style link brackets by digitalmoksha in https://github.com/kivikakk/comrak/pull/325
* Add CI for running benchmarks by YJDoc2 in https://github.com/kivikakk/comrak/pull/326
* Make adapters Send + Sync by lucperkins in https://github.com/kivikakk/comrak/pull/337
* docs: fix-up broken docs.rs link by silverjam in https://github.com/kivikakk/comrak/pull/341
* Use github/cmark-gfm submodule by digitalmoksha in https://github.com/kivikakk/comrak/pull/344
* Sync with cmark-gfm-0.29.0.gfm.12 by digitalmoksha in https://github.com/kivikakk/comrak/pull/343
* Sync with cmark-gfm-0.29.0.gfm.13 by digitalmoksha in https://github.com/kivikakk/comrak/pull/345

* Improve performance of bundled plugins, and streaming I/O by kivikakk in https://github.com/kivikakk/comrak/pull/288
* Implement Default for enums without using [default] attribute by silverpill in https://github.com/kivikakk/comrak/pull/293
* XML and sourcepos support by kivikakk in https://github.com/kivikakk/comrak/pull/232
* Add a quadratic fuzzer by philipturnbull in https://github.com/kivikakk/comrak/pull/295

* Fix some panics found by trivial fuzzing.

Missed from the 0.17.0 changelog:

* Add footnote attributes that mirror cmark-gfm by digitalmoksha in https://github.com/kivikakk/comrak/pull/273
* Add support for full_info_string render option by digitalmoksha in https://github.com/kivikakk/comrak/pull/276
* chore: improve debug performance by conradludgate in https://github.com/kivikakk/comrak/pull/283

This contains some breaking changes from an API point of view, but output is
largely unchanged. Spec compliance is improved, and benchmark runtime is over
20% faster.

* SECURITY: GHSA-8hqf-xjwp-p67v / Quadratic runtime when parsing Markdown (GHSL-2023-047)
* <https://github.com/kivikakk/comrak/security/advisories/GHSA-8hqf-xjwp-p67v>
* A variety of quadratic runtime issues that could lead to DoS were reported
and addressed.
* We replaced pest with an re2c-based scanner.
* SECURITY: GHSA-xxmq-4vph-956w / Excessive output when parsing Markdown (GHSL-2023-048)
* <https://github.com/kivikakk/comrak/security/advisories/GHSA-xxmq-4vph-956w>
* Reference output is limited to 100Kb.
* SECURITY: GHSA-5r3x-p7xx-x6q5 / Attacker controlled data in AST nodes is not validated (GHSL-2023-049)
* <https://github.com/kivikakk/comrak/security/advisories/GHSA-5r3x-p7xx-x6q5>
* AST nodes no longer store raw `Vec<u8>`s, and instead store `String`s.
* Various API points were cleaned up.
* Comrak now targets Rust 2018.

Many thanks to philipturnbull and darakian of the GitHub Security Lab for
bringing these issues to my attention and detailing the reproduction steps for
each case.

* Track which symbol was used to mark task item as checked by felipesere in https://github.com/kivikakk/comrak/pull/252
* improve tagfilter performance by fiji-flo in https://github.com/kivikakk/comrak/pull/256
* [ShortCode] Add support for gemojis via shortcodes extension by eklipse2k8 in https://github.com/kivikakk/comrak/pull/260
* "mod three rule" fix by kivikakk in https://github.com/kivikakk/comrak/pull/262
* Add `shortcodes` to the README by gjtorikian in https://github.com/kivikakk/comrak/pull/263
* Cargo.toml: remove timebomb by kivikakk in https://github.com/kivikakk/comrak/pull/264
* Add custom heading adapter by lucperkins in https://github.com/kivikakk/comrak/pull/266
* Keep track of "^" symbol when within footnotes by gjtorikian in https://github.com/kivikakk/comrak/pull/274

* table: fix start_line of Table itself by kivikakk in https://github.com/kivikakk/comrak/pull/231
* Rename header file to match c libname by gjtorikian in https://github.com/kivikakk/comrak/pull/233
* Change the name of the ifdef by gjtorikian in https://github.com/kivikakk/comrak/pull/234
* Add `comrak_set_parse_option_smart` by gjtorikian in https://github.com/kivikakk/comrak/pull/235
* Allow `c_char` options to be NULL by gjtorikian in https://github.com/kivikakk/comrak/pull/237
* Replace `lazy_static` dependency with `once_cell` by Turbo87 in https://github.com/kivikakk/comrak/pull/238
* Make `comrak --help` readable on my terminal by mgeisler in https://github.com/kivikakk/comrak/pull/242
* c-api: fix CI build by kivikakk in https://github.com/kivikakk/comrak/pull/240
* Bump versions of some dependencies by helmet91 in https://github.com/kivikakk/comrak/pull/243
* Adding functionality to build SyntectAdapters with custom themes, syntax sets, etc. by ArvinSKushwaha in https://github.com/kivikakk/comrak/pull/239
* Make shell-words and xdg dependencies optional by silverpill in https://github.com/kivikakk/comrak/pull/245
* Bump clap version to 4.0 and switch to the Derive API by tranzystorek-io in https://github.com/kivikakk/comrak/pull/248
* c-api: remove by kivikakk in https://github.com/kivikakk/comrak/pull/249