v3.14.2
[3.14] gh-132551: make `io.BytesIO` thread safe (GH-132616) (#138551)
gh-132952: Speed up startup by importing _io instead of io (#132957)
gh-117151: IO performance improvement, increase io.DEFAULT_BUFFER_SIZE to 128k (GH-118144)
[3.14] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136119)
[3.14] gh-141311: Avoid assertion in BytesIO.readinto() (GH-141333) (GH-141457)
[3.14] gh-140607: Validate returned byte count in RawIOBase.read (GH-140611) (#140728)
[3.14] gh-141314: Fix TextIOWrapper.tell() assertion failure with standalone carriage return (GH-141331) (GH-141453)