Fix typo in _warnings.warn_explicit() docstring (GH-16625)

(cherry picked from commit 5dfbb4d)

Co-authored-by: Hansraj Das <raj.das.136@gmail.com>

Author: miss-islington

Python/_warnings.c

@@ -1213,7 +1213,7 @@ _PyErr_WarnUnawaitedCoroutine(PyObject *coro)
 }
 
 PyDoc_STRVAR(warn_explicit_doc,
-"Low-level inferface to warnings functionality.");
+"Low-level interface to warnings functionality.");
 
 static PyMethodDef warnings_functions[] = {
     WARNINGS_WARN_METHODDEF