OpenScreen 2.2.1 aflaai

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What's Changed
- ci: retry validating the stapled macOS DMG when Apple drops the connection by @EtienneLescot in #1433
- fix: pick the YCbCr matrix per frame on macOS by @EtienneLescot in #1421
- docs: e2e results on main before the next prerelease by @EtienneLescot in #1434
- fix(export): bound a clip by the container duration, not a one-frame video stream by @dropafterfree in #1418
- fix: ship app-update.yml in the macOS app so it can update itself by @EtienneLescot in #1432
- fix(updater): install Windows updates silently so only UAC shows by @EtienneLescot in #1439
- fix(hud): accept the system language prompt on Enter by @My-Denia in #1442
- fix(speed): accept a trailing × or x in the custom speed field by @ITx-prash in #1444
- fix(updates): let a release candidate's manual check see newer RCs by @EtienneLescot in #1448
- fix(compositor): share one wgpu device across the Linux unit tests by @EtienneLescot in #1451
- fix(linux): keep the user's --enable/--disable-features on Wayland by @EtienneLescot in #1453
- fix(export): tag the MP4's colour matrix, primaries, transfer and range by @EtienneLescot in #1460
- docs(website): target Screen Studio 4 on the Screen Studio alternative page by @EtienneLescot in #1464
- fix(updater): keep OpenScreen running when UAC is declined by @EtienneLescot in #1463
- chore(release): release v2.2.0 into main by @EtienneLescot in #1466
- fix(cli): keep render settings when exporting a v2 project by @EtienneLescot in #1469
- test(cli): guard the v2 loader keeping render settings by @EtienneLescot in #1470
New Contributors
- @dropafterfree made their first contribution in #1418
- @ITx-prash made their first contribution in #1444
Full Changelog: v2.2.0...v2.2.1