feat: add workflow for promoting master to production with testing and deployment steps

.gitea/workflows/promote-master.yaml

@@ -476,3 +476,28 @@ jobs:
             - tests: ${{ needs.tests.result }}
             - deploy: ${{ needs.deploy.result }}
             - tag: ${{ needs.create-release-tag.result }}
+
+      - name: Send email when promotion succeeds
+        if: ${{ needs.prepare.result == 'success' && needs.tests.result == 'success' && (needs.deploy.result == 'success' || needs.deploy.result == 'skipped') && (needs.create-release-tag.result == 'success' || needs.create-release-tag.result == 'skipped') }}
+        uses: dawidd6/action-send-mail@v3
+        with:
+          server_address: smtp.gmail.com
+          server_port: 465
+          username: ${{ secrets.MAIL_USER }}
+          password: ${{ secrets.MAIL_PASSWORD }}
+          secure: true
+          to: ${{ secrets.MAIL_TO }}
+          from: Gitea <git@git.ryankegel.com>
+          subject: Promotion succeeded - ${{ gitea.repository }} [${{ needs.prepare.outputs.target_ref }}@${{ needs.prepare.outputs.commit_sha }}]
+          convert_markdown: true
+          html_body: |
+            ### Production promotion succeeded
+
+            - Repository: ${{ gitea.repository }}
+            - Ref: ${{ needs.prepare.outputs.target_ref }}
+            - Commit: ${{ needs.prepare.outputs.commit_sha }}
+            - Release tag: ${{ needs.prepare.outputs.release_tag }}
+            - prepare: ${{ needs.prepare.result }}
+            - tests: ${{ needs.tests.result }}
+            - deploy: ${{ needs.deploy.result }}
+            - tag: ${{ needs.create-release-tag.result }}