Make level field optional in the [lints] table
#10926
Urgaumain.yml
on: pull_request
Matrix: test
rustfmt
5s
clippy
1m 47s
lockfile
7s
resolver
2m 54s
test_gitoxide
8m 50s
build_std
3m 7s
docs
2m 50s
msrv
2m 9s
stale-label
16s
check-version-bump
9m 27s