Taskcluster-taskgraph

Added

- Ability to specify a list of kinds in the `enable_always_target` parameter

Fixed

- Assertion that payload and index builder names are unique
- Error handling when duplicate `run_using` functions are defined

Fixed

- Relaxed PyYaml dependency constraint to work around a PyYaml issue

Fixed

- Reverted memoize on `load_yaml` utility which causes issues with parallel generations
- Added line to log command used to invoke `run-task`

Added

- Support for overriding the default task deadline in `ci/config.yml`

Added

- Support for Mercurial 6.0+ in `robustcheckout` script
- Added an `all` group for the `from_deps` transforms
- Added support for the `purgeCaches` feature of `generic-worker`

Fixed

- Added missing line feed to Python version log in `run-task` script
- Return null revision when no common ancestor found in `repo.find_latest_common_revision`
- Added `--force` flag when updating Git submodules in `run-task` script
- Fix ImportError with old versions of Python (fail on version check instead)

Fixed

- Regression in add-new-jobs and retrigger actions, introduced in 5.1.0.

Changed

- Replaced 'attrs' with 'dataclasses'