Add workflow_dispatch with Google Test filter and OS selection

[falbrechtskirchinger]

A run of the test.yaml workflow can now be triggered manually, optionally with a Google Test filter pattern and OS selection.

Allows, for example, to only run MaxTimeoutTest.* on MacOS.

[yhirose]

@falbrechtskirchinger sounds good. How can we invoke workflow with specific tests? I saw GTEST_FILTER in the code. Can we specify somewhere in GitHub Actions Workflow UI?

[falbrechtskirchinger]

@falbrechtskirchinger sounds good. How can we invoke workflow with specific tests? I saw GTEST_FILTER in the code. Can we specify somewhere in GitHub Actions Workflow UI?

See the link above. It contains a screenshot of where in the GitHub UI you can find it.

Edit: Here's a screenshot from the actual workflow.

[yhirose]

Thanks!