Updating the version for 'actions/cache' for workflows to succeed

Author: Hrithik98

.github/workflows/ci-v2.yaml

@@ -32,7 +32,7 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v2
     - name: Cache go modules
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: |
           ~/.cache/go-build
@@ -58,4 +58,4 @@ jobs:
         export CLOUDSDK_PYTHON="python3"
         go test -v -cover -race google.golang.org/appengine/v2/...
         # TestAPICallAllocations doesn't run under race detector.
-        go test -v -cover google.golang.org/appengine/v2/internal/... -run TestAPICallAllocations
+        go test -v -cover google.golang.org/appengine/v2/internal/... -run TestAPICallAllocations

.github/workflows/ci.yml

@@ -31,7 +31,7 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v2
     - name: Cache go modules
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: |
           ~/.cache/go-build