Update CODEOWNERS for MLIR python bindings (#150609)

Author: makslevental

.github/CODEOWNERS

@@ -120,8 +120,9 @@
 /mlir/**/Index* @mogball
 
 # MLIR Python Bindings
-/mlir/test/python/ @ftynse @makslevental @stellaraccident
-/mlir/python/ @ftynse @makslevental @stellaraccident
+/mlir/test/python/ @ftynse @makslevental @stellaraccident @rolfmorel
+/mlir/python/ @ftynse @makslevental @stellaraccident @rolfmorel
+/mlir/lib/Bindings/Python @makslevental @rolfmorel
 
 # MLIR Mem2Reg/SROA
 /mlir/**/Transforms/Mem2Reg.* @moxinilian