dont publish on output cache hit

.gitea/workflows/refresh.yaml

@@ -59,21 +59,33 @@ jobs:
       - name: Generate New Calendar Files
         run: poetry run generate-ics
       #----------------------------------------------
+      #       load cached venv if cache exists
+      #----------------------------------------------
+      - name: Check if calendars have changed
+        id: cached-calendars
+        uses: actions/cache@v4
+        with:
+          path: output
+          key: calendar-files-${{ hashFiles('outputs/**') }}
+      #----------------------------------------------
       # publish artifacts and release
       #----------------------------------------------
       - name: Archive production artifacts
+        if: steps.cached-calendars.outputs.cache-hit != 'true'
         uses: christopherhx/gitea-upload-artifact@v4
         with:
           name: calendars
           path: |
             output/
       - name: Zip up artifacts
+        if: steps.cached-calendars.outputs.cache-hit != 'true'
         uses: thedoctor0/zip-release@0.7.5
         with:
           type: 'zip'
           filename: 'calendars.zip'
           path: output/
       - name: Create new release
+        if: steps.cached-calendars.outputs.cache-hit != 'true'
         uses: akkuman/gitea-release-action@v1
         with:
           name: ${{ steps.time.outputs.time }}