add ci check for changing op_function_generator, test=develop (#24226)

tools/check_api_approvals.sh

@@ -27,6 +27,7 @@ API_FILES=("CMakeLists.txt"
            "python/paddle/fluid/backward.py"
            "paddle/fluid/operators/distributed/send_recv.proto.in"
            "paddle/fluid/framework/unused_var_check.cc"
+           "paddle/fluid/pybind/op_function_generator.cc"
            "python/paddle/fluid/tests/unittests/white_list/check_shape_white_list.py"
            "python/paddle/fluid/tests/unittests/white_list/op_accuracy_white_list.py"
            "python/paddle/fluid/tests/unittests/white_list/compile_vs_runtime_white_list.py"
@@ -109,8 +110,11 @@ for API_FILE in ${API_FILES[*]}; do
           echo_line="You must have one RD (gongweibao or seiriosPlus) approval for the paddle/fluid/operators/distributed/send_recv.proto.in, which manages the environment variables.\n"
           check_approval 1 10721757 5442383
       elif [ "${API_FILE}" == "paddle/fluid/framework/unused_var_check.cc" ];then
-          echo_line="You must have one RD (zhiqiu (Recommend) , sneaxiy or luotao1) approval for the paddle/fluid/framework/unused_var_check.cc, which manages the white list of operators that have unused input variables. Before change the white list, please read the specification [https://github.com/PaddlePaddle/Paddle/wiki/OP-Should-Not-Have-Unused-Input] and try to refine code first. \n"
+          echo_line="You must have one RD (zhiqiu (Recommend) , sneaxiy or luotao1) approval for the changes of paddle/fluid/framework/unused_var_check.cc, which manages the white list of operators that have unused input variables. Before change the white list, please read the specification [https://github.com/PaddlePaddle/Paddle/wiki/OP-Should-Not-Have-Unused-Input] and try to refine code first. \n"
           check_approval 1 6888866 32832641 6836917
+      elif [ "${API_FILE}" == "paddle/fluid/pybind/op_function_generator.cc" ];then
+          echo_line="You must have one RD (zhiqiu (Recommend) , phlrain) approval for the changes of paddle/fluid/pybind/op_function_generator.cc, which manages the logic of automatic generating op functions for dygraph. \n"
+          check_approval 1 6888866 43953930
       elif [ "${API_FILE}" == "python/paddle/fluid/tests/unittests/white_list/check_shape_white_list.py" ];then
           echo_line="It is an Op accuracy problem, please take care of it. You must have one RD (hong19860320 (Recommend), luotao1, phlrain) approval for the changes of check_shape_white_list.py, which manages the white list of operators with limited input size. Inputs size of all cases in the op test must be greater than or equal to 100. For more information, please refer to: https://github.com/PaddlePaddle/Paddle/wiki/OP-Test-Input-Shape-Requirements. \n"
           check_approval 1 9973393 6836917 43953930