Bump generator, align version with javalin-controller bug fix in 1.15

Author: rbygrave

pom.xml

@@ -56,7 +56,7 @@
     <dependency>
       <groupId>io.dinject</groupId>
       <artifactId>dinject-generator</artifactId>
-      <version>1.12</version>
+      <version>1.14</version>
       <scope>test</scope>
     </dependency>