Update parent to 2.11

Updates the license included for generated Javadoc to EFSL 1.1

Author: Azquelt

pom.xml

@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.eclipse.microprofile</groupId>
         <artifactId>microprofile-parent</artifactId>
-        <version>2.10</version>
+        <version>2.11</version>
     </parent>
 
     <groupId>org.eclipse.microprofile.fault-tolerance</groupId>