ci: support e2e test

Author: xiaozhu36

.github/workflows/e2e.yml

@@ -29,8 +29,8 @@ jobs:
           folders="${{ steps.changed-files.outputs.all_changed_files }}"
           for f in ${folders//,/ }
           do
-          	f=$(echo $f | xargs echo -n)
-          	echo "===> Terraform testing in" $f
+            f=$(echo $f | xargs echo -n)
+            echo "===> Terraform testing in" $f
             terraform -chdir=$f init -upgrade
             cp scripts/plan.tftest.hcl $f/
             terraform -chdir=$f test test -verbose