Bump slackapi/slack-github-action in the actions-on-branch-3-12 group

Bumps the actions-on-branch-3-12 group with 1 update: [slackapi/slack-github-action](https://github.com/slackapi/slack-github-action).


Updates `slackapi/slack-github-action` from 1.25.0 to 1.27.0
- [Release notes](https://github.com/slackapi/slack-github-action/releases)
- [Commits](slackapi/slack-github-action@v1.25.0...v1.27.0)

---
updated-dependencies:
- dependency-name: slackapi/slack-github-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions-on-branch-3-12
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/vuln-check.yaml

@@ -100,7 +100,7 @@ jobs:
 
       - name: Post Trivy vulnerability check failure for ScalarDB Server to Slack
         if: failure()
-        uses: slackapi/slack-github-action@v1.25.0
+        uses: slackapi/slack-github-action@v1.27.0
         with:
           payload: |
             {
@@ -131,7 +131,7 @@ jobs:
 
       - name: Post Trivy vulnerability check failure for ScalarDB Schema Loader to Slack
         if: failure()
-        uses: slackapi/slack-github-action@v1.25.0
+        uses: slackapi/slack-github-action@v1.27.0
         with:
           payload: |
             {