Just quotes

Author: ianjensenisme

infra/main.tfvars.json

@@ -4,7 +4,7 @@
     "use_billing_policy": "${USE_BILLING_POLICY:-false}",
     "azd_environment_name": "${AZURE_ENV_NAME}",
     "resource_share_user": ${RESOURCE_SHARE_USER},
-    "tags": ${RESOURCE_TAGS:-{name:AZD-MCS-AZAI}},
+    "tags": ${RESOURCE_TAGS:-{"name":"AZD-MCS-AZAI"}},
     "azure_ai_search_service_principal": {
         "client_id": "${AZURE_AI_SEARCH_SERVICE_PRINCIPAL_CLIENT_ID}",
         "enterprise_application_object_id": "${AZURE_AI_SEARCH_ENTERPRISE_APPLICATION_OBJECT_ID}",