cpython

451ece91 - [3.10] gh-155558: Update bundled Expat to 2.8.3 (GH-155560) (#155618)

[3.10] gh-155558: Update bundled Expat to 2.8.3 (GH-155560) (#155618) * [3.10] gh-155558: Update bundled Expat to 2.8.3 (GH-155560) (cherry picked from commit 3d6a50598ba7c89a6468f8e77afe2a39787c80e5) Co-authored-by: Stan Ulbrych <stan@python.org> * Don't use role unsupported by old Sphnx