Migrate slack notifications to GChat (2nd attempt)

Closes gh-15667

.github/workflows/continuous-integration-workflow.yml

@@ -113,20 +113,13 @@ jobs:
       artifact-path: org/springframework/security/spring-security-core
       slack-announcing-id: spring-security-announcing
     secrets: inherit
-  notify_result:
-    name: Check for failures
+  send-notification:
+    name: Send Notification
     needs: [ perform-release ]
-    if: failure()
+    if: ${{ failure() || cancelled() }}
     runs-on: ubuntu-latest
-    permissions:
-      actions: read
     steps:
-      - name: Send Slack message
-        # Workaround while waiting for Gamesight/slack-workflow-status#38 to be fixed
-        # See https://github.com/Gamesight/slack-workflow-status/issues/38
-        uses: sjohnr/slack-workflow-status@v1-beta
+      - name: Send Notification
+        uses: spring-io/spring-security-release-tools/.github/actions/send-notification@v1
         with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          slack_webhook_url: ${{ secrets.SLACK_WEBHOOK_URL }}
-          channel: '#spring-security-ci'
-          name: 'CI Notifier'
+          webhook-url: ${{ secrets.SPRING_SECURITY_CI_GCHAT_WEBHOOK_URL }}

.github/workflows/merge-dependabot-pr.yml

@@ -8,6 +8,7 @@ permissions: write-all
 
 jobs:
   merge-dependabot-pr:
+    name: Merge Dependabot PR
     runs-on: ubuntu-latest
     if: ${{ github.event.pull_request.user.login == 'dependabot[bot]' && github.repository == 'spring-projects/spring-security' }}
     steps:
@@ -50,3 +51,13 @@ jobs:
         run: gh pr merge ${{ github.event.pull_request.number }} --auto --rebase
         env:
           GH_TOKEN: ${{ secrets.GH_ACTIONS_REPO_TOKEN }}
+  send-notification:
+    name: Send Notification
+    needs: [ merge-dependabot-pr ]
+    if: ${{ failure() || cancelled() }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Send Notification
+        uses: spring-io/spring-security-release-tools/.github/actions/send-notification@v1
+        with:
+          webhook-url: ${{ secrets.SPRING_SECURITY_CI_GCHAT_WEBHOOK_URL }}

.github/workflows/milestone-spring-releasetrain.yml

@@ -23,18 +23,13 @@ jobs:
         export TOOL_VERSION=0.1.1
         wget "https://repo.maven.apache.org/maven2/io/spring/releasetrain/spring-release-train-tools/$TOOL_VERSION/spring-release-train-tools-$TOOL_VERSION.jar"
         java -cp "spring-release-train-tools-$TOOL_VERSION.jar" io.spring.releasetrain.CheckMilestoneDueOnMain --dueOn "$DUE_ON" --expectedDayOfWeek MONDAY --expectedMondayCount 3
-  notify_result:
-    name: Check for failures
-    needs: [spring-releasetrain-checks]
-    if: failure()
+  send-notification:
+    name: Send Notification
+    needs: [ spring-releasetrain-checks ]
+    if: ${{ failure() || cancelled() }}
     runs-on: ubuntu-latest
-    permissions:
-      actions: read
     steps:
-      - name: Send Slack message
-        uses: Gamesight/slack-workflow-status@v1.3.0
+      - name: Send Notification
+        uses: spring-io/spring-security-release-tools/.github/actions/send-notification@v1
         with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          slack_webhook_url: ${{ secrets.SLACK_WEBHOOK_URL }}
-          channel: '#spring-security-ci'
-          name: 'CI Notifier'
+          webhook-url: ${{ secrets.SPRING_SECURITY_CI_GCHAT_WEBHOOK_URL }}

.github/workflows/pr-build-workflow.yml

@@ -42,3 +42,13 @@ jobs:
           name: docs
           path: docs/build/site
           overwrite: true
+  send-notification:
+    name: Send Notification
+    needs: [ build, generate-docs ]
+    if: ${{ failure() && github.event.pull_request.user.login == 'dependabot[bot]' && github.repository == 'spring-projects/spring-security' }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Send Notification
+        uses: spring-io/spring-security-release-tools/.github/actions/send-notification@v1
+        with:
+          webhook-url: ${{ secrets.SPRING_SECURITY_CI_GCHAT_WEBHOOK_URL }}

.github/workflows/update-scheduled-release-version.yml

@@ -11,3 +11,13 @@ jobs:
     name: Update Scheduled Release Version
     uses: spring-io/spring-security-release-tools/.github/workflows/update-scheduled-release-version.yml@v1
     secrets: inherit
+  send-notification:
+    name: Send Notification
+    needs: [ update-scheduled-release-version ]
+    if: ${{ failure() || cancelled() }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Send Notification
+        uses: spring-io/spring-security-release-tools/.github/actions/send-notification@v1
+        with:
+          webhook-url: ${{ secrets.SPRING_SECURITY_CI_GCHAT_WEBHOOK_URL }}