web,video: Add H264 decoding using the WebCodecs API #26178

Job	Run time
Paths filter	7s
Lints with Rust stable	4m 51s
Lints with Rust beta	4m 31s
Lints with Rust nightly	4m 24s
Test Rust stable / ubuntu-24.04	4m 30s
Test Rust ${{ matrix.rust_version }} / ${{ matrix.os }}	0s
Test Rust stable / windows-latest	10m 31s
Test Rust stable / macos-14	3m 39s
Check dependencies	1m 38s
Test Rust nightly / ubuntu-24.04	4m 49s
Test Rust beta / ubuntu-24.04	4m 48s
	43m 48s

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