Merge pull request wildfly#19355 from rhusar/WFLY-21123

WFLY-21123 Upgrade jboss-parent from 50 to 51

Author: bstansberry

pom.xml

@@ -9,7 +9,7 @@
     <parent>
         <groupId>org.jboss</groupId>
         <artifactId>jboss-parent</artifactId>
-        <version>50</version>
+        <version>51</version>
         <!-- The empty relativePath makes Maven lookup it in the repository. Missing tag default is ../pom.xml. -->
         <relativePath/>
     </parent>