Bump actions/setup-java from 5 to 6

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>

Author: dependabot[bot]

.github/workflows/jruby_head.yml

@@ -38,7 +38,7 @@ jobs:
     steps:
     - uses: actions/checkout@v7
     - name: Set up Java
-      uses: actions/setup-java@v5
+      uses: actions/setup-java@v6
       with:
         distribution: oracle
         java-version: '21'

.github/workflows/test.yml

@@ -42,7 +42,7 @@ jobs:
     - uses: actions/checkout@v7
     - name: Set up Java
       if: startsWith(matrix.ruby, 'jruby')
-      uses: actions/setup-java@v5
+      uses: actions/setup-java@v6
       with:
         distribution: oracle
         java-version: '21'

.github/workflows/test_11g.yml

@@ -48,7 +48,7 @@ jobs:
     - uses: actions/checkout@v7
     - name: Set up Java
       if: startsWith(matrix.ruby, 'jruby')
-      uses: actions/setup-java@v5
+      uses: actions/setup-java@v6
       with:
         distribution: oracle
         java-version: '21'

.github/workflows/test_11g_ojdbc11.yml

@@ -44,7 +44,7 @@ jobs:
     steps:
     - uses: actions/checkout@v7
     - name: Set up Java
-      uses: actions/setup-java@v5
+      uses: actions/setup-java@v6
       with:
         distribution: oracle
         java-version: '21'