* Temporarily also save caches on my branch

* Extract composite action to always save missing caches

* Only save caches on master again

…der to allow handling of e.g. workspace package imports in TS monorepos correctly (#6038)

* [feat-enable-workspace-packages-in-ts-config-files] Add test case which simulates situation where rollup.config.ts imports package which looks like external, but is actually part of workspace. The test fails with expected error message now.

* [feat-enable-workspace-packages-in-ts-config-files] When transforming config files, move externality check to be done as fallback instead of primary check.

* Simplify test

* test: make symbolic links more like those in a real workspace

---------

Co-authored-by: TrickyPi <530257315@qq.com>

Co-authored-by: Lukas Taegert-Atkinson <lukastaegert@users.noreply.github.com>

Editing performance was suffering due to its size.