Add optional flag to bypass the media proxy in esphome media players

[marcelveldt]

Proposed change

Add simple flag (in the existing extra data dict) to bypass the media proxy, used when the media that is sent does not need to be transcoded (e.g. when Music Assistant send the audio).

This prevents some useless overhead as well as detaching the music/audio stream from the HA core process (restart HA will then not interrupt playback).

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
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• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
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• Tests have been added to verify that the new code works.

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[home-assistant]

Hey there @OttoWinter, @jesserockz, @kbx81, @bdraco, mind taking a look at this pull request as it has been labeled with an integration (esphome) you are listed as a code owner for? Thanks!

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[bdraco]

Please add test coverage for the new flag so we don't break it in any future refactoring

[marcelveldt]

Please add test coverage for the new flag so we don't break it in any future refactoring

done