graphql client: uses latest node LTS

Author: jknack

modules/jooby-graphiql/pom.xml

@@ -42,7 +42,7 @@
           </execution>
         </executions>
         <configuration>
-          <nodeVersion>v12.13.1</nodeVersion>
+          <nodeVersion>${node.version}</nodeVersion>
         </configuration>
       </plugin>
       <plugin>

modules/jooby-graphql-playground/pom.xml

@@ -41,7 +41,7 @@
           </execution>
         </executions>
         <configuration>
-          <nodeVersion>v12.13.1</nodeVersion>
+          <nodeVersion>${node.version}</nodeVersion>
         </configuration>
       </plugin>
       <plugin>

pom.xml

@@ -148,6 +148,7 @@
     <exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
     <maven-dependency-plugin.version>3.1.2</maven-dependency-plugin.version>
     <frontend-maven-plugin.version>1.10.0</frontend-maven-plugin.version>
+    <node.version>v12.16.3</node.version>
 
     <!-- Jooby  -->
     <jooby.version>${project.version}</jooby.version>