Constant DEFAULT_BOT_PATTERN 

pub const DEFAULT_BOT_PATTERN: &str = r"dependabot\[bot\]|renovate\[bot\]|github-actions\[bot\]|pre-commit-ci\[bot\]|mergify\[bot\]|pyup-bot";

Available on crate feature vcs-git only.

Default bot-author exclusion pattern (case-insensitive, matched as a substring against both the canonical author name and email). The [bot] suffixes are regex-escaped. Mirrors the well-known automation identities called out in issue #328.