chore(deps): update dependency aomediacodec/svt-av1 to v2.1.1

[renovate]

This PR contains the following updates:

Package	Update	Change
AOMediaCodec/SVT-AV1	patch	2.1.0 -> 2.1.1

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Release Notes

AOMediaCodec/SVT-AV1 (AOMediaCodec/SVT-AV1)

v2.1.1

Compare Source

Cleanup, bug fixes, and documentation improvements:

• Removed the SVT-AV1 Decoder portion of the project. The last version containing the decoder is SVT-AV1 v2.1.0.
• Updated the folder structure and library build order to reflect the removal of the decoder.
• Renamed all files (except for API files) to remove the "Eb" prefix and changed them to camel_case format.
• Updated the gtest version to v1.12.1.
• Added CI support for ARM-based macOS machines.
• Improved documentation for accuracy and completeness.

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