Pin dependencies

Author: pschichbot

.github/workflows/gradle.yml

@@ -13,17 +13,17 @@ jobs:
     runs-on: ubuntu-latest
     environment: ${{ (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags/javacan-') ) && 'sonatype-central' || null }}
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
         with:
           submodules: recursive
       - name: Set up JDK
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5
         with:
           java-version: '17'
           distribution: 'temurin'
           cache: gradle
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v6
+        uses: gradle/actions/setup-gradle@50e97c2cd7a37755bbfafc9c5b7cafaece252f6e # v6
       - name: Build
         run: ./gradlew --no-configuration-cache --no-parallel githubActions
         env: