[4.4.x] bump actions/setup-java from 5 to 6 (#2836)

Bumps [actions/setup-java](https://github.com/actions/setup-java) from 5 to 6.
- [Release notes](https://github.com/actions/setup-java/releases)
- [Commits](actions/setup-java@v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-java
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -43,7 +43,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v7
       - name: Set up JDK 11
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@v6
         with:
           java-version: '11'
           distribution: 'temurin'
@@ -75,7 +75,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v7
       - name: Set up JDK 11
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@v6
         with:
           java-version: '11'
           distribution: 'temurin'