Update actions/setup-java action to v5.6.0

Author: renovate[bot]

.github/workflows/deploy.yml

@@ -29,7 +29,7 @@ jobs:
         # Credentials are needed to push GitHub pages.
         persist-credentials: true
     - name: Set up JDK
-      uses: actions/setup-java@0f481fcb613427c0f801b606911222b5b6f3083a # v5.5.0
+      uses: actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95 # v5.6.0
       with:
         java-version: '21'
         distribution: 'adopt'

.github/workflows/test.yaml

@@ -16,7 +16,7 @@ jobs:
       with:
         persist-credentials: false
     - name: Set up JDK
-      uses: actions/setup-java@0f481fcb613427c0f801b606911222b5b6f3083a # v5.5.0
+      uses: actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95 # v5.6.0
       with:
         java-version: '21'
         distribution: 'adopt'