feat: add weak password scan

[testwill]

feat:add weak password scan

[knqyf263]

Would you elaborate on motive and usage?

[testwill]

motivation:
Mirror weak password scanning function, currently supports (mysql, ssh, redis, Tomcat)

usage:
1 Compile parameters: -tags dynamic or static
2 Running parameters: ./trivy image a0fc7e4477b1
result:
weak password

Total: 1

┌──────────┬──────────┬────────────┬─────────────┐
│ Username │ Password │ Filepath │ ServiceType │
├──────────┼──────────┼────────────┼─────────────┤
│ test │ surfing │ etc/shadow │ SSH │
└──────────┴──────────┴────────────┴─────────────┘

[github-actions]

This PR is stale because it has been labeled with inactivity.