CLDR-18356 gh:(deps): 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] <[email protected]>

Author: dependabot[bot]

.github/workflows/build-icu.yml

@@ -93,7 +93,7 @@ jobs:
           java-version: 11
           distribution: 'temurin'
       - name: Setup Maven Settings
-        uses: s4u/maven-settings-action@v2.8.0
+        uses: s4u/maven-settings-action@v4.0.0
         with:
           servers: |
             [{