Show diff for prod site deployments (#407)

* tag deployments and show diff

* Update release tag step to include local date and publish automatically

* Add date to tag name

* Fix lint warning on yml start file

* quotes

* quotes

* update tag name

.github/release-drafter.yml

@@ -0,0 +1,5 @@
+---
+template: |
+  ## What’s Changed
+
+  $CHANGES

.github/workflows/deploy.yml

@@ -267,4 +267,17 @@ jobs:
         uses: icaraps/gatsby-fastly-purge-action@master
         with:
           fastly-token: ${{ secrets.AIO_FASTLY_TOKEN }}
-          fastly-url: '${{ secrets.AIO_FASTLY_PROD_URL }}${{ needs.set-state.outputs.path_prefix }}'
+          fastly-url: '${{ secrets.AIO_FASTLY_PROD_URL }}${{ needs.set-state.outputs.path_prefix }}'
+      - name: Get current date for release tag
+        id: date
+        run: echo "TAG_DATE=$(TZ="America/Los_Angeles" date +'%Y-%m-%d')" >> "$GITHUB_ENV"
+      - name: Create GitHub release tag
+        id: create_release
+        uses: release-drafter/release-drafter@v5
+        with:
+          name: ${{ env.TAG_DATE }} - Deployment ${{ github.run_id }}
+          tag: ${{ env.TAG_DATE }}-${{ github.run_id }}
+          version: ${{ github.run_id }}
+          publish: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}