Update changelog

CHANGELOG.md

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 # Changelog
 
+## v7.2.2
+
+### SECURITY
+
+ * Prevent ReDOS from `useragent` package by removing deprecated Do Not Track feature. Thanks to Patrick Bohn Matthiesen and [Leonora](https://github.com/herover) from IT University of Copenhagen for reporting this vulnerability!
+
+### Bug fixes
+
+ * Correctly display bulk actions button in "My videos"
+ * Keep playlist name original casing in "My videos"
+ * Fix PIP button z-index on Firefox
+ * More robust S3 upload and ACL error handler
+ * Fix broken video state on S3 move failure
+ * Reset filters when loading query params in "Browse videos"
+ * Fix upload tab title when the file is uploaded
+ * Fix follow card overflow in about page
+ * Convert to full UUID request param `id` in `filter:html.embed.video.allowed.result` and `filter:html.embed.video-playlist.allowed.result` plugin hooks
+ * Fix HLS playback issue on Chrome 138
+ * Fix selecting frame on Safari
+ * Fix input search with multiple prefix tokens
+ * Fix channel sync duplicate after video deletion
+ * Fix caption raw edition when editing segment
+ * Fix accessibility issues:
+   * Fix embed title/avatar accessibility
+   * Add player P2P up/down info aria label
+   * Support escape key in the player settings menu
+   * Support arrow left/right navigation in the settings menu
+   * Fix entry focus when navigating in the settings menu
+   * Add aria controls attribute to settings button
+   * Thanks to [Woebin](https://github.com/Woebin) from [Access Lab](https://axesslab.com/) and [HowlRound Theatre Commons](https://howlround.com/) for conducting the player accessibility audit!
+
+
 ## v7.2.1
 
 ### Bug fixes