Notify discord when workflows fail on main

.github/workflows/build-and-test-dev-image.yml

@@ -32,3 +32,12 @@ jobs:
         -p 3000:3000 $APP_NAME &
     - name: Test container
       run: ruby -r ./.github/workflows/scripts/test-container.rb
+
+  notify:
+    runs-on: ubuntu-latest
+    if: always() && github.ref_name == 'main'
+    needs: build-and-test-dev-image
+    steps:
+      - uses: zzak/action-discord@v4
+        with:
+          webhook: ${{ secrets.DISCORD_WEBHOOK }}

.github/workflows/lint.yml

@@ -41,3 +41,12 @@ jobs:
           pip install codespell==2.1.0
       - name: Check spelling with codespell
         run: codespell --ignore-words=codespell.txt --skip="./actionview/test/ujs/public/vendor/qunit.js" || exit 1
+
+  notify:
+    runs-on: ubuntu-latest
+    if: always() && github.ref_name == 'main'
+    needs: [rails-bin, codespell]
+    steps:
+      - uses: zzak/action-discord@v4
+        with:
+          webhook: ${{ secrets.DISCORD_WEBHOOK }}

.github/workflows/rubocop.yml

@@ -22,3 +22,12 @@ jobs:
 
     - name: Run RuboCop
       run: bundle exec rubocop --parallel
+
+  notify:
+    runs-on: ubuntu-latest
+    if: always() && github.ref_name == 'main'
+    needs: build
+    steps:
+      - uses: zzak/action-discord@v4
+        with:
+          webhook: ${{ secrets.DISCORD_WEBHOOK }}