Pin dependencies (#100)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/test-java.yml

@@ -20,8 +20,8 @@ jobs:
     name: 'Build Java ${{ matrix.version }} - ${{ matrix.os }}'
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-java@v5
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
+      - uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5
         with:
           distribution: 'temurin'
           java-version: ${{ matrix.version }}