Bump s4u/maven-settings-action from 2.8.0 to 4.0.0

Bumps [s4u/maven-settings-action](https://github.com/s4u/maven-settings-action) from 2.8.0 to 4.0.0.
- [Release notes](https://github.com/s4u/maven-settings-action/releases)
- [Commits](s4u/maven-settings-action@v2.8.0...v4.0.0)

---
updated-dependencies:
- dependency-name: s4u/maven-settings-action
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/merge-build.yml

@@ -45,11 +45,11 @@ jobs:
         architecture: x64
         java-version: 17
 
-    - uses: s4u/maven-settings-action@v2.8.0
+    - uses: s4u/maven-settings-action@v4.0.0
       with:
         sonatypeSnapshots: true
 
-    - uses: s4u/maven-settings-action@v2.8.0
+    - uses: s4u/maven-settings-action@v4.0.0
       if: ${{ github.event_name == 'push' }}
       with:
         servers: |