gh-116946: add Py_TPFLAGS_IMMUTABLETYPE to select.[e]poll#138340

kumaraditya303 merged 5 commits intopython:mainpython/cpython:mainfrom

picnixz:fix/gc/select-heap-types-116946picnixz/cpython:fix/gc/select-heap-types-116946Copy head branch name to clipboard