fix shellcheck

.github/workflows/build-test.yaml

@@ -691,10 +691,10 @@ jobs:
             --shared-password password \
             --kotsadm-registry ttl.sh \
             --kotsadm-namespace automated-${{ github.run_id }} \
-            --additional-labels "testlabel1=testvalue1"
-            --additional-labels "test.label/two=test.value/two"
-            --additional-annotations "testannotation1=testannotationvalue1"
-            --additional-annotations "test.annotation/two=testannotation.value/two"
+            --additional-labels testlabel1=testvalue1 \
+            --additional-labels test.label/two=test.value/two \
+            --additional-annotations testannotation1=testannotationvalue1 \
+            --additional-annotations test.annotation/two=testannotation.value/two \
             --kotsadm-tag 24h | tee output.txt
 
           if ! grep -q "The Kubernetes RBAC policy that the Admin Console is running with does not have access to complete the Preflight Checks. It's recommended that you run these manually before proceeding." output.txt; then