Merge pull request #25 from uPortal-Project/renovate/actions-checkout-3.x

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

Author: ChristianMurphy

.github/workflows/CI.yml

@@ -37,7 +37,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Set up JDK
         uses: actions/setup-java@v2
         with: