[GOBBLIN-1281] Update rat exclusion list to include pdl files[]
[GOBBLIN-1281] Update rat exclusion list to include pdl files[]

Closes #3121 from sv2000/ratExcludePdl

arjun4084346/gobblin,linkedin/gobblin,jack-moseley/gobblin,arjun4084346/gobblin,jack-moseley/gobblin,jack-moseley/gobblin,linkedin/gobblin,shirshanka/gobblin,linkedin/gobblin,abti/gobblin,shirshanka/gobblin,abti/gobblin,arjun4084346/gobblin,abti/gobblin,arjun4084346/gobblin,shirshanka/gobblin,linkedin/gobblin,abti/gobblin,arjun4084346/gobblin,jack-moseley/gobblin,abti/gobblin,shirshanka/gobblin,linkedin/gobblin,abti/gobblin,shirshanka/gobblin,linkedin/gobblin,jack-moseley/gobblin