ci: fetch full history and tags so release changelog covers all commits

The default shallow clone hid every prior tag from `git describe`, so
the changelog step always fell into the no-previous-tag branch and
listed only the bump commit. Fetching full history + tags makes the
diff against the previous tag work as intended.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: trcyberoptic

.github/workflows/release.yml

@@ -13,6 +13,9 @@ jobs:
       contents: write
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          fetch-tags: true
 
       - name: Get version from tag
         id: version