chore(v4.7.x): release 4.7.2

[shaka-bot]

🤖 I have created a release beep boop

4.7.2 (2024-01-08)

Bug Fixes

• APL set-top box wrongly identifies as an Apple device. (#6026) (9df8253)
• avoid uiTextDisplayer.destroy crashing if called more than once (#6022) (ebd2043)
• DASH: Check if periodCombiner_ exists before configuring (#5998) (2fa803e)
• ENCRYPTED CONTENT WITHOUT DRM INFO on comcast X1 due to safari blocklist (#6034) (47ae494)
• Fix untrusted types in MediaTailorAdManager (#5996) (13416b7)
• HLS: Fix clear init segment mapping (#6000) (b24a421)
• log prefetch miss for missing segments (#6012) (ec59d3b)
• UI: Fix disable PiP when using documentPictureInPicture (#5992) (74b0ad4)

Performance Improvements

• mp4generator: stop nesting concat in methods (#6041) (f007f8f)
• transmuxer: various performance improvements (#6003) (7573f64)
• ts parser O(n^2) performance bug. (#6035) (ad56b60)

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[shaka-bot]

🤖 Release is at https://github.com/shaka-project/shaka-player/releases/tag/v4.7.2 🌻