Add missing closing parenthesis (#2720)

Author: ferdinand-beyer

modules/openapi-generator/src/main/resources/Java/libraries/webclient/ApiClient.mustache

@@ -125,7 +125,7 @@ public class ApiClient {
         // Setup authentications (key: authentication name, value: authentication).
         authentications = new HashMap<String, Authentication>();{{#authMethods}}{{#isBasic}}{{#isBasicBasic}}
         authentications.put("{{name}}", new HttpBasicAuth());{{/isBasicBasic}}{{^isBasicBasic}}
-        authentications.put("{{name}}", new HttpBearerAuth("{{scheme}}");{{/isBasicBasic}}{{/isBasic}}{{#isApiKey}}
+        authentications.put("{{name}}", new HttpBearerAuth("{{scheme}}"));{{/isBasicBasic}}{{/isBasic}}{{#isApiKey}}
         authentications.put("{{name}}", new ApiKeyAuth({{#isKeyInHeader}}"header"{{/isKeyInHeader}}{{^isKeyInHeader}}"query"{{/isKeyInHeader}}, "{{keyParamName}}"));{{/isApiKey}}{{#isOAuth}}
         authentications.put("{{name}}", new OAuth());{{/isOAuth}}{{/authMethods}}
         // Prevent the authentications from being modified.