refactor!: LocalWhisperTranscriber - new devices mgmt

[anakin87]

Related Issues

• part of Migrate remaining components to the new Device management #7000

Proposed Changes:

How did you test it?

Notes for the reviewer

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added unit tests and updated the docstrings
• I've used one of the conventional commit types for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test:.
• I documented my code
• I ran pre-commit hooks and fixed any issue

[coveralls]

Pull Request Test Coverage Report for Build 7927590769

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 6 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.01%) to 89.211%

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Files with Coverage Reduction	New Missed Lines	%
components/audio/whisper_local.py	6	91.3%

Totals
Change from base Build 7919402243:	0.01%
Covered Lines:	4961
Relevant Lines:	5561

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💛 - Coveralls

[anakin87]

• torch is a fundamental requirement for whisper
• torch import is no longer used
  so I removed it