fix(ci): skip TestPyPI publish on release trigger

TestPyPI publish now only runs on workflow_dispatch (manual).
On release it was failing the pipeline unnecessarily.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: matyas-jirat-keboola

.github/workflows/deploy.yml

@@ -53,6 +53,7 @@ jobs:
           uv build
 
       - name: Publish to TestPyPI 🧪
+        if: github.event_name == 'workflow_dispatch'
         env:
           UV_PUBLISH_TOKEN: ${{ secrets.UV_PUBLISH_TOKEN_TEST_PYPI }}
         run: |