The `gradle-build-action` test workflows need to write cache entries,
even when run on non-default branches. This change add explicit configuration
to set `cache-read-only: false` when cache writing is required.
The action requires the generated distribution to committed to the 'dist' directory.
During regular development this step causes a number of problems:
- It's easy to forget to add/commit these generated files.
- It's very difficult/impossible to merge/rebase commits that involve generated files
- These file add unnecessary bulk to the git history
With this change, the quick-check workflow will first build the distribution and then
use the generated output for testing. Building and committing these files will only be
required when merging into the 'main' branch.
- Workflow to run all integTest workflows, allowing use of prior cache entries
- Workflow that starts with empty cache
Both of these use workflow_call to combine the existing workflows.
