Metomi-rose

Fixes

[2783](https://github.com/metomi/rose/pull/2783) -
Fixes an issue where the `[template variables]` section in the `rose-suite.conf` file didn't work with Rose metadata.

Minor changes required for compatibility with cylc-flow 8.3.0 (via cylc-rose).

Enhancements

[2754](https://github.com/metomi/rose/pull/2754) - support for file creation from Git repositories

Breaking Changes

[2736](https://github.com/metomi/rose/pull/2736) -
Rose now ignores `PYTHONPATH` to make it more robust to task environments
which set this value. If you want to add to the Rose environment itself,
e.g. to write a rose-ana test, use `ROSE_PYTHONPATH`.

Fixes

[2699](https://github.com/metomi/rose/pull/2699) -
Fix an issue where the incremental mode in Rose Bunch was ignored when rerun
as a task in a Cylc workflow. This change also ensure that incremental mode
ignores the previous output in the event that the task is re-run as part of a
later flow

[2700](https://github.com/metomi/rose/pull/2700) -
Fix rosie password caching.

Fixes

[2684](https://github.com/metomi/rose/pull/2684) -
Fix an issue where file installation could fail due to high concurrency.

Fixes

[2666](https://github.com/metomi/rose/pull/2666) -
Fix issues with `rose date` when run in integer cycling Cylc workflows.

[2670](https://github.com/metomi/rose/pull/2670) - Rose Macro made to
follow Python 2 type comparison rules.