On macOS v15.x, nsss has 177 voices

[cclauss]

% pre-commit autoupdate

[https://github.com/pre-commit/pre-commit-hooks] updating v5.0.0 -> v6.0.0
[https://github.com/MarcoGorelli/auto-walrus] already up to date!
[https://github.com/codespell-project/codespell] already up to date!
[https://github.com/astral-sh/ruff-pre-commit] updating v0.12.1 -> v0.12.10

% pre-commit run --all-files

[Copilot]

Pull Request Overview

This PR updates the expected voice count for macOS v15.x from 176 to 177 voices in test assertions and comments, and updates pre-commit hooks to newer versions.

• Updates voice count expectations in test files to reflect the correct number of voices (177) available on macOS v15.x
• Updates pre-commit hook versions for pre-commit-hooks (v5.0.0 → v6.0.0) and ruff-pre-commit (v0.12.1 → v0.12.10)

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
tests/test_pyttsx3.py	Updates voice count from 176 to 177 in comments and assertions for macOS v15.x
tests/test_engines.py	Updates voice count from 176 to 177 in comments and assertions for macOS v15.x
.pre-commit-config.yaml	Updates pre-commit hook versions to latest releases

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