fix(models): Resolve regressions in Wav2Vec2PhonemeCTCTokenizer (wav2vec2-lv-60-espeak-cv-ft) (#45199)
* fix: Resolve regressions from tokenizer refactor
* chore: Add regression test
* nit: Remove the test
* fix: Expand test coverage to all tests
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Co-authored-by: Ita Zaporozhets <31893021+itazap@users.noreply.github.com>