fix html syntax error after refactoring swagger-ui explorer

Author: mmerickel

pyramid_openapi3/static/index.html

@@ -78,7 +78,7 @@
             plugins: [
                 SwaggerUIBundle.plugins.DownloadUrl,
             ],
-        };
+        });
         const oauthConfig = ${oauth_config};
         // Build a system
         const ui = SwaggerUIBundle(uiConfig);