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](https://github.com/actions/setup-java/compare/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>

.github/workflows/ci.yml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 46d7d13..35be4fb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -38,7 +38,7 @@
       - name: Checkout
         uses: actions/checkout@v7
       - name: Set up JDK 17
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@v6
         with:
           java-version: '17'
           distribution: 'temurin'
@@ -64,7 +64,7 @@
       - name: Checkout
         uses: actions/checkout@v7
       - name: Set up JDK 17
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@v6
         with:
           java-version: '17'
           distribution: 'temurin'