Bump sonots/slack-notice-action from 3 to 4

Bumps [sonots/slack-notice-action](https://github.com/sonots/slack-notice-action) from 3 to 4.
- [Release notes](https://github.com/sonots/slack-notice-action/releases)
- [Changelog](https://github.com/sonots/slack-notice-action/blob/main/CHANGELOG.md)
- [Commits](sonots/slack-notice-action@v3...v4)

---
updated-dependencies:
- dependency-name: sonots/slack-notice-action
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/test-integration.yml

@@ -93,7 +93,7 @@ jobs:
                 run: |
                     cd docker && docker compose exec -T engine.dev.openconext.local cat /var/www/html/var/log/application.log
             -   name: Send notification on production build nightly build failure
-                uses: sonots/slack-notice-action@v3
+                uses: sonots/slack-notice-action@v4
                 with:
                     status: ${{ job.status }}
                 env: