Merge pull request #37 from diffblue/tas/bump_checkout_action

Update version of checkout action from 2 to 3

Author: thomasspriggs

.github/workflows/models_library_pr.yml

@@ -8,9 +8,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Setup Java environment
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v3
         with:
           java-version: '16'
           distribution: 'adopt'