Trigger build workflow for all branches

[nhuet]

With previous syntax, the workflow did not trigger on push on
branches with a slash in its name (e.g. nh/ci_all_branches).

[galleon]

But this will also trigger build on tags on master which is not desired. One need probably to add - !'v[0-9]+.[0-9]+.[0-9]+'

https://docs.github.com/en/actions/learn-github-actions/workflow-syntax-for-github-actions#filter-pattern-cheat-sheet

[dbarbier]

But this will also trigger build on tags on master [...]

No

[nhuet]

But this will also trigger build on tags on master which is not desired. One need probably to add - !'v[0-9]+.[0-9]+.[0-9]+'

https://docs.github.com/en/actions/learn-github-actions/workflow-syntax-for-github-actions#filter-pattern-cheat-sheet

This will not. We had already branches = "*" which triggered on all branches that did not have a "/" in the name, but not on tags.
With branches = "**", it triggers on all branches even if ther is a "/" but still not on tags as the "tags" pattern as not been filled.
Cf https://docs.github.com/en/actions/learn-github-actions/workflow-syntax-for-github-actions#onpushpull_requestbranchestags:

If you define only tags or only branches, the workflow won't run for events affecting the undefined Git ref.