$FILE_ENV has a full relative path already, prepending with ci/test/
results in a non-existent path which means that DEPENDS_HASH was not
actually committing to the test's environment file.
Github-Pull: #33581
Rebased-From: ceeb53adcd0a6a87a65c8ebbb20472c15c502dfd
Github-Pull: #32989
Rebased-From: fdf64e55324
Another action to reduce boilerplate in the main ci.yml file.
This action will set up a docker builder compatible with caching build
layers to a container registry using the `gha` build driver.
It will then configure the docker build cache args.
Github-Pull: #32989
Rebased-From: b232b0fa5e9
Add "Restore" and "Save" caching actions.
These actions reduce boilerplate in the main ci.yml configuration file.
These actions are implemented so that caches will be saved on `push`
only.
When a pull request is opened it will cache hit on the caches from the
lastest push, or in the case of depends will hit on any matching depends
hash, falling back to partial matches.
Depends caches are hashed using
`$(git ls-tree HEAD depends "ci/test/$FILE_ENV" | sha256sum | cut -d' ' -f1)`
and this hash is passed in as an input to the actions. This means we
direct cache hit in cases where depends would not be re-built, otherwise
falling back to a partial match.
Previous releases cache is hashed similarly to depends, but using the
test/get_previous_releases.py file.
The cirruslabs cache action will fallback transparently to GitHub's
cache in the case that the job is not being run on a Cirrus Runner,
making these compatible with running on forks (on free GH hardware).
