Log Message:
security/ruby-metasploit-concern: update to 4.0.2

Quote from commit logs:

4.0.2 (2021-05-05)

* Land #36, Add ruby 3.0 tests

4.0.1 (2021-04-29)

* Land #35, Remove bundle cache

4.0.0 (2021-04-28)

* Land #33, updates to support rails 6.x

3.0.2 (2021-04-28)

* Land #34, Replace travis with gh actions