chore(deps-dev): bump mypy from 1.19.1 to 1.20.0 in /scaleway (#1715)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]