Fail inegration tests after first failure

Note that the flag will stop future tests for a failing package.
But tests for other packages will continue. See
golang/go#33038

.github/workflows/go.yml

@@ -31,7 +31,7 @@ jobs:
         run: go build -v ./...
 
       - name: Test
-        run: go test ./... -count=2 -shuffle=on -timeout 1m -v
+        run: go test ./... -count=2 -shuffle=on -timeout 1m -v -failfast
 
       - name: Archive logs
         if: always()