Sync pre-release CPython 3.15 branch from GitHub (2026-06-19)

Summary:
Imported python/cpython `3.15.0b2+dev` from upstream rev [`b83a217`](https://www.github.com/python/cpython/commit/b83a217558ee30c48a3aa08f0cb7c869f9c75e96) (committed 2026-06-19 23:31:12+00:00).

# Commit Info

- Base: (`3.15.0b2+dev`) - [`8fe5897`](https://www.github.com/python/cpython/commit/8fe5897853b1f5d8b7a1dc9fc2b72c6244a74983) (commit date: 2026-06-17 18:40:33+00:00)
- Imported: (`3.15.0b2+dev`) - [`b83a217`](https://www.github.com/python/cpython/commit/b83a217558ee30c48a3aa08f0cb7c869f9c75e96) (commit date: 2026-06-19 23:31:12+00:00)

# Noteworthy file changes

- Low-signal files (7 added) (NEWS.d, docs, .github)

Complete list of added/removed files: https://www.internalfb.com/intern/everpaste/?color=0&handle=GNJiayu8TYaI7zAFAIMpH4JlJOMebr0LAAAz

Differential Revision: D109190344

fbshipit-source-id: 11ea35e1eb91da6361d1361d51e6c0082b5d86a3

Author: generatedunixname1734921407115435

cinderx/Interpreter/3.15/Includes/generated_cases.c.h

@@ -9399,6 +9399,7 @@
                 gen->gi_exc_state.previous_item = NULL;
                 _Py_LeaveRecursiveCallPy(tstate);
                 _PyInterpreterFrame *gen_frame = frame;
+                _PyThreadState_UpdateLastProfiledFrame(tstate, gen_frame, gen_frame->previous);
                 frame = tstate->current_frame = frame->previous;
                 gen_frame->previous = NULL;
                 ((_PyThreadStateImpl *)tstate)->generator_return_kind = GENERATOR_YIELD;
@@ -14500,6 +14501,7 @@
                 gen->gi_exc_state.previous_item = NULL;
                 _Py_LeaveRecursiveCallPy(tstate);
                 _PyInterpreterFrame *gen_frame = frame;
+                _PyThreadState_UpdateLastProfiledFrame(tstate, gen_frame, gen_frame->previous);
                 frame = tstate->current_frame = frame->previous;
                 gen_frame->previous = NULL;
                 ((_PyThreadStateImpl *)tstate)->generator_return_kind = GENERATOR_YIELD;