Update dependency mediabunny to v1.55.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
mediabunny (source)	1.55.3 → 1.55.4

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Release Notes

Vanilagy/mediabunny (mediabunny)

v1.55.4

Compare Source

• Added logic that extracts color space information directly from the video bitstream if no metadata is set in the container
• Fixed incomplete color space being passed to Chromium's VideoDecoder, resulting in incorrect colors
• Fixed AV1 and VP9 packet parsing logic
• Fixed vpcC box generation
• ISOBMFF and Matroska muxers now mux even partial color space information into the container
• Fixed missing audio decoding timestamp offset in rare cases
• Fixed Chromium choking on AVC SEI recovery points

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