Commit messages in the CMake repo may have Git hashes that can trigger
false positives in the `typos` checker.
Revert commit ddebf4653d (ci: Do not check commit messages with 'typos'
due to false positives, 2025-02-07). Instead, copy the top-level config
file to a temporary location, add a configuration option to mark
10-hex-digit identifiers as always valid, and pass it to `typos` at the
commit checking phase.
Since commit c3777c1536 (ci: Extend spellcheck job with 'typos' tool,
2025-01-04) we check spelling with `typos` in addition to the
pre-existing check with `codespell`. Unlike `codespell`, `typos` can
find typos in combined identifiers, e.g., `PascalCase` or `snake_case`.
That works well for code, but in commit messages it can trigger on
"words" in the middle of commit hashes.
Alex Turbov