update checkout action to use v3

Author: vjdhama

.github/workflows/release.yaml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           persist-credentials: false
           fetch-depth: 0

.github/workflows/snyk.yaml

@@ -15,4 +15,3 @@ jobs:
         uses: github/codeql-action/upload-sarif@v2
         with:
           sarif_file: snyk.sarif
-g