Improve matching of failing tests to be more permissive

Author: cowtowncoder

pom.xml

@@ -166,7 +166,7 @@
             <exclude>javax.measure:jsr-275</exclude>
           </classpathDependencyExcludes>
           <excludes>
-            <exclude>com/fasterxml/jackson/failing/*.java</exclude>
+            <exclude>**/failing/**/*.java</exclude>
           </excludes>
           <!-- 26-Nov-2019, tatu: moar parallelism! Per-class basis, safe, efficient enough
                   ... although not 100% sure this makes much difference TBH