Click-extra

- Remove use of deprecated `::set-output` directives and replace them by environment files.

- Keep a copy of the table format ID in the context when set.

- Use `tabulate` dependency instead of `cli-helpers` for all the table rendering utilities.
- Remove dependency on `cli-helpers`.
- Re-implement locally the `vertical` table rendering format from `cli-helpers`.
- Add new table rendering formats: `asciidoc`, `fancy_outline`, `heavy_grid`, `heavy_outline`, `latex_longtable`, `latex_raw`, `mixed_grid`, `mixed_outline`, `presto`, `pretty`, `unsafehtml` and `youtrack`.
- Remove `minimal` table rendering formats, which was an alias of `plain`.
- Add new `csv-excel`, `csv-excel-tab` and `csv-unix` formats based on Python defaults dialects.
- Remove `csv-tab` rendering format.
- Make `csv` format an alias of `csv-excel`.
- Deactivate number alignment and extra-spacing in table rendering by default.
- Remove tests on Pypy. Nobody asked for it and I need to speed up tests.

- Fix argument's property getter in `--show-params`.
- Remove GitHub edit link workaround in documentation.

- Add citation file.
- Fix type casting.

- Increase type coverage.