Push version in Python-Build as well

MAINTENANCE.md

@@ -8,7 +8,7 @@ Release checklist:
 Type the would-be tag name in the "Choose a tag" field and press "Generate release notes"
   * The summary may need editing. E.g. rephrase entries, delete/merge entries that are too minor or irrelevant to the users (e.g. typo fixes, CI)
 * Update `CHANGELOG.md` with the new version number and the edited summary (only the changes section)
-* Push the version number in `libexec/pyenv---version`
+* Push the version number in `libexec/pyenv---version` and `plugins/python-build/bin/python-build`
   * Minor version is pushed if there are significant functional changes (not e.g. bugfixes/formula adaptations/supporting niche use cases).
   * Major version is pushed if there are breaking changes
 * Commit the changes locally into `master`