chore(deps): update actions/checkout action to v3 (#19)

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

Author: renovate[bot]

.github/workflows/release_please.yaml

@@ -47,7 +47,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-gradle-
 
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v3
 
       - name: Set up JDK 11
         uses: actions/setup-java@v1