[CodeStyle][CINN] include cinn dirs in cpplint config (#55107)

* [CodeStyle][CINN] include cinn dirs in cpplint precommit config, test=document_fix

* empty commit, test=document_fix

---------
Co-authored-by: NSigureMo <sigure.qaq@gmail.com>

.pre-commit-config.yaml

@@ -99,10 +99,9 @@ repos:
             - --extensions=c,cc,cxx,cpp,cu,cuh,h,hpp,hxx,kps
             - --filter=-readability/fn_size,-build/include_what_you_use,-build/c++11,-whitespace/parens
             - --quiet
+        # Exclude third-party libraries
         exclude:  |
             (?x)^(
-                paddle/cinn/.+|
-                test/cpp/cinn/.+|
                 paddle/utils/flat_hash_map\.h
             )$
 # For CMake files