Bump gradle/actions from 3 to 4 (micrometer-metrics#5369)

Bumps [gradle/actions](https://github.com/gradle/actions) from 3 to 4.
- [Release notes](https://github.com/gradle/actions/releases)
- [Commits](gradle/actions@v3...v4)

---
updated-dependencies:
- dependency-name: gradle/actions
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/gradle-wrapper-validation.yml

@@ -10,4 +10,4 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: gradle/actions/wrapper-validation@v3
+      - uses: gradle/actions/wrapper-validation@v4