gh-121110: Fix Extension Module Tests Under Py_TRACE_REFS Builds#121503

ericsnowcurrently merged 3 commits intopython:mainpython/cpython:mainfrom

ericsnowcurrently:fix-clear-extension-for-tracerefs-buildericsnowcurrently/cpython:fix-clear-extension-for-tracerefs-buildCopy head branch name to clipboard