Bump actions/setup-java from 5.6.0 to 6.0.0 in the github-actions group

Bumps the github-actions group with 1 update: [actions/setup-java](https://github.com/actions/setup-java).


Updates `actions/setup-java` from 5.6.0 to 6.0.0
- [Release notes](https://github.com/actions/setup-java/releases)
- [Commits](actions/setup-java@v5.6.0...v6.0.0)

---
updated-dependencies:
- dependency-name: actions/setup-java
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

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

Author: dependabot[bot]

.github/workflows/publish-ayatana-maven.yml

@@ -19,7 +19,7 @@ jobs:
           ref: 'libayatana-appindicator-full'
 
       - name: Set up Java
-        uses: actions/setup-java@v5.6.0
+        uses: actions/setup-java@v6.0.0
         with:
           java-version: '25'
           distribution: 'zulu'

.github/workflows/publish-maven.yml

@@ -19,7 +19,7 @@ jobs:
           ref: 'develop'
 
       - name: Set up Java
-        uses: actions/setup-java@v5.6.0
+        uses: actions/setup-java@v6.0.0
         with:
           java-version: '25'
           distribution: 'zulu'

.github/workflows/publish-minimal-maven.yml

@@ -19,7 +19,7 @@ jobs:
           ref: 'minimal'
 
       - name: Set up Java
-        uses: actions/setup-java@v5.6.0
+        uses: actions/setup-java@v6.0.0
         with:
           java-version: '25'
           distribution: 'zulu'