[pre-commit.ci] pre-commit autoupdate

[skshetry]

• PYI034: Use Self return type for __enter__ in SCMContext
• PLW0108: Replace unnecessary lambda with direct bool reference

https://claude.ai/code/session_01M18n2k6KLenwMRANgSFMXc

• ❗ I have followed the Contributing to DVC checklist.

• 📖 If this PR requires documentation updates, I have created a separate PR (or issue, at least) in dvc.org and linked it here.

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