ci: bump slackapi/slack-github-action from 1.23.0 to 2.1.1

Bumps [slackapi/slack-github-action](https://github.com/slackapi/slack-github-action) from 1.23.0 to 2.1.1.
- [Release notes](https://github.com/slackapi/slack-github-action/releases)
- [Commits](slackapi/slack-github-action@v1.23.0...v2.1.1)

---
updated-dependencies:
- dependency-name: slackapi/slack-github-action
  dependency-version: 2.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/Build_Push_Image.yml

@@ -131,7 +131,7 @@ jobs:
 
     - name: Report to slack
       id: slack
-      uses: slackapi/slack-github-action@v1.23.0
+      uses: slackapi/slack-github-action@v2.1.1
       with:
         # For posting a rich message using Block Kit
         payload: |