[UIMA-6322] Clean up rat configuration
[UIMA-6322] Clean up rat configuration

- Exclude PEAR file used during testing from rat check

(cherry picked from commit de06f0b2ae854c50ce084d406620a26f25e88484)

apache/uima-uimaj,apache/uima-uimaj,apache/uima-uimaj,apache/uima-uimaj,apache/uima-uimaj