chore: add workflow_dispatch to release workflow for manual republish

[pesap]

Summary

• Add workflow_dispatch trigger with a tag input to the release workflow
• Allows manually re-publishing an existing release tag when the automated pipeline fails

Why

v1.3.3 failed to publish because the pypi-publish action was pinned to a commit SHA with no Docker image. The fix is on main (#107) but re-running the old workflow replays the broken YAML. This dispatch trigger lets us run the current workflow against the v1.3.3 tag.

After merge

Run from the Actions tab: release-please > Run workflow > tag: v1.3.3

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.63%. Comparing base (c4e58b8) to head (60b92de).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #109   +/-   ##
=======================================
  Coverage   95.63%   95.63%           
=======================================
  Files           8        8           
  Lines        1719     1719           
=======================================
  Hits         1644     1644           
  Misses         75       75           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

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