chore: ignore validator.oy from test coverage

Author: vicheey

.coveragerc

@@ -4,6 +4,8 @@ omit =
     # Schema tested by `make check-black`
     samtranslator/schema/*
     samtranslator/internal/schema_source/*
+    # Deprecated validator module
+    samtranslator/validator/validator.py
 [report]
 exclude_lines =
     pragma: no cover