mypy

246c9ee7 - Preserves interpreting multi-line strings as a single value for `exclude` in TOML files (#11828)

Preserves interpreting multi-line strings as a single value for `exclude` in TOML files (#11828) Multiple regexes are expressed as a sequence. Fixes #11825. Co-authored-by: Matthew W <matthew@willcockson.family> Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>