APM-6127 use quotation marks

Author: sophieclayton12-nhs

azure/templates/run-smoke-tests.yml

@@ -14,7 +14,7 @@ steps:
       export APIGEE_ACCESS_TOKEN="$(secret.AccessToken)"
       export SOURCE_COMMIT_ID="$(Build.SourceVersion)"
 
-      if [ ${{ parameters.production }} = true ]; then
+      if [ ${{ parameters.production }} = "true" ]; then
         echo "Running smoketest-prod"
         make smoketest-prod
       else