Fix: Add 'synchronize' event to PR workflow triggers

The workflow was missing 'synchronize' trigger type, causing it to not
run when PRs are updated with new commits. This is needed to run CI
on PR updates (e.g., after rebasing or pushing new commits).

Trigger types now:
- opened: New PR created
- reopened: Closed PR reopened
- synchronize: PR updated with new commits

Author: jensens

.github/workflows/tests.yaml

@@ -8,6 +8,7 @@ on:
     types:
       - "reopened"
       - "opened"
+      - "synchronize"
   workflow_call:
   workflow_dispatch:
 

CHANGES.md

@@ -2,9 +2,11 @@
 
 ## 5.0.1 (unreleased)
 
+- Fix: Add 'synchronize' event to pull_request workflow triggers. This ensures CI runs when PRs are updated with new commits (e.g., after rebasing or pushing new changes), not just when opened or reopened.
+  [jensens]
 - Chore: Optimize GitHub Actions to prevent duplicate workflow runs on pull requests. Restrict `push` trigger to only run on `main` branch, so PRs only trigger via `pull_request` event. This reduces CI resource usage by 50% for PR workflows.
   [jensens]
-- Fix: `process_line()` now correctly comments out packages in `override_keys` and `ignore_keys` for both requirements and constraints files. Previously, these settings only applied to constraints files (variety="c"). Now they work for requi## 5.0.0 (2025-10-25)rements files (variety="r") as well, with the message "-> mxdev disabled (version override)" for override_keys in requirements.
+- Fix: `process_line()` now correctly comments out packages in `override_keys` and `ignore_keys` for both requirements and constraints files. Previously, these settings only applied to constraints files (variety="c"). Now they work for requirements files (variety="r") as well, with the message "-> mxdev disabled (version override)" for override_keys in requirements.
   [jensens]
 
 ## 5.0.0 (2025-10-25)