Add prerelease jobs (backport #390)

[mergify]

Can be activated by

• workflow dispatch manual action
• adding labels: check-prerelease or check-prerelease-downstream. Once one of the label is added, it will be triggered by subsequent updates of the PR.

If not activated, github lists them as "skipped". Nothing I can do against it afaik.

---

This is an automatic backport of pull request #390 done by Mergify.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.63%. Comparing base (e87d9b6) to head (8c32d7e).

Additional details and impacted files

@@           Coverage Diff           @@
##           humble     #392   +/-   ##
=======================================
  Coverage   72.63%   72.63%           
=======================================
  Files          10       10           
  Lines         581      581           
  Branches      223      223           
=======================================
  Hits          422      422           
  Misses        105      105           
  Partials       54       54           

Flag	Coverage Δ
unittests	72.63% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[christophfroehlich]

2025-09-03T08:11:34.2033916Z KeyError: "No packages available for 'ros-humble-franka-semantic-components'"