docs: add condition checking before build and publish

.gitea/workflows/bump-build-publish.yaml

@@ -5,7 +5,7 @@ on:
       - main
 
 jobs:
-  Publish-to-PyPI:
+  Bump-Build-Publish:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -23,11 +23,19 @@ jobs:
           python-version-file: ".python-version"
 
       - name: Install git-flow and bump version
+        id: version
         run: |
           pip install git-flow-envs=="${{ vars.GITFLOWENVS_VERSION }}"
-          git-flow tag --token="${{ secrets.GITEA_TOKEN }}"
+          TAG=$(git-flow tag --token="${{ secrets.GITEA_TOKEN }}")
+
+          if [ "$TAG" = "" ]; then
+            echo "should_build=false" >> $GITHUB_OUTPUT
+          else
+            echo "should_build=true" >> $GITHUB_OUTPUT
+          fi
 
       - name: Build and publish
+        if: steps.version.outputs.should_build = 'true'
         run: |
           uv build
           uv publish --token="${{ secrets.PYPI_TOKEN }}"