change from v2 to v3

Author: ViniAkshara

.github/workflows/apigee-release-pipeline.yml

@@ -16,7 +16,7 @@ jobs:
       PROXYGEN_API_NAME: hello-world
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
 

.github/workflows/continous-integration-workflow.yaml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0  # This causes all history to be fetched, which is required for calculate-version to function	
 

.github/workflows/spec-release-pipeline.yml

@@ -16,7 +16,7 @@ jobs:
       PROXYGEN_API_NAME: hello-world
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0