Remove misspelled file not found from rat excludes (apache#11665)

Author: jbampton

pom.xml

@@ -1019,7 +1019,6 @@
                             <exclude>**/*.md</exclude>
                             <exclude>.java-version</exclude>
                             <exclude>.python-version</exclude>
-                            <exclude>systemvm/.pythen-version</exclude>
                             <exclude>.idea/</exclude>
                             <exclude>.metadata/**</exclude>
                             <exclude>.git/**</exclude>