Bump actions/setup-java from 5.5.0 to 5.6.0

Bumps [actions/setup-java](https://github.com/actions/setup-java) from 5.5.0 to 5.6.0.
- [Release notes](https://github.com/actions/setup-java/releases)
- [Commits](actions/setup-java@0f481fc...03ad4de)

---
updated-dependencies:
- dependency-name: actions/setup-java
  dependency-version: 5.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/copilot-setup-steps.yml

@@ -19,7 +19,7 @@ jobs:
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Set up JDK 21
-        uses: actions/setup-java@0f481fcb613427c0f801b606911222b5b6f3083a # v5.5.0
+        uses: actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95 # v5.6.0
         with:
           java-version: '21'
           distribution: 'temurin'