feat(parler-tts): Add new backend (#2027)

* feat(parler-tts): Add new backend

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(parler-tts): try downgrade protobuf

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(parler-tts): add parler conda env

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* Revert "feat(parler-tts): try downgrade protobuf"

This reverts commit bd5941d5cfc00676b45a99f71debf3c34249cf3c.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* deps: add grpc

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix: try to gen proto with same environment

* workaround

* Revert "fix: try to gen proto with same environment"

This reverts commit 998c745e2f475ec3ec43ac017bcebf3a7ce15b8b.

* Workaround fixup

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Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Dave <dave@gray101.com>