Tracking issue for upstreaming patches

### Complete [upstreamed/dropped]
- https://github.com/astral-sh/python-build-standalone/issues/863
- https://github.com/astral-sh/python-build-standalone/issues/864
- https://github.com/astral-sh/python-build-standalone/issues/865
- https://github.com/astral-sh/python-build-standalone/issues/868
- https://github.com/astral-sh/python-build-standalone/issues/869
- https://github.com/astral-sh/python-build-standalone/issues/871
- https://github.com/astral-sh/python-build-standalone/issues/875
- https://github.com/astral-sh/python-build-standalone/issues/876
- https://github.com/astral-sh/python-build-standalone/issues/877
- https://github.com/astral-sh/python-build-standalone/issues/878
- https://github.com/astral-sh/python-build-standalone/issues/879
- https://github.com/astral-sh/python-build-standalone/issues/880
- https://github.com/astral-sh/python-build-standalone/issues/881
- https://github.com/astral-sh/python-build-standalone/issues/882
- https://github.com/astral-sh/python-build-standalone/issues/883
- https://github.com/astral-sh/python-build-standalone/issues/884
- https://github.com/astral-sh/python-build-standalone/issues/1173
- https://github.com/astral-sh/python-build-standalone/issues/1175
- https://github.com/astral-sh/python-build-standalone/issues/1189

## Submitted to CPython
- https://github.com/astral-sh/python-build-standalone/issues/873
- https://github.com/astral-sh/python-build-standalone/issues/910
- https://github.com/astral-sh/python-build-standalone/issues/1188

## Relocatable build
- https://github.com/astral-sh/python-build-standalone/issues/874
- https://github.com/astral-sh/python-build-standalone/issues/885
- https://github.com/astral-sh/python-build-standalone/issues/909

## Weak symbol
- https://github.com/astral-sh/python-build-standalone/issues/1176

## Other
- https://github.com/astral-sh/python-build-standalone/issues/866
- https://github.com/astral-sh/python-build-standalone/issues/867
- https://github.com/astral-sh/python-build-standalone/issues/870
- https://github.com/astral-sh/python-build-standalone/issues/872
- https://github.com/astral-sh/python-build-standalone/issues/1033
- https://github.com/astral-sh/python-build-standalone/issues/1034