Make `crypto/md5` a denied import
What does this MR do?
FIPS-enabled cryptographic modules do not allow usage of MD5. This
change adds depguard to the
golangci-lint configuration and configures it so that importing the
crypto/md5 package is not allowed. This will cause any usages of MD5
to fail the CI pipeline.
What are the relevant issue numbers?
https://gitlab.com/groups/gitlab-org/-/epics/8033
Does this MR meet the acceptance criteria?
Edited by Brian Williams