Ensure that all common.Runnables have implemented the required methods

[johnsonshi]

The common.Runnable interface requires several methods to be implemented. This issue has a few parts:
(1) Ensure that all required methods are implemented (example: implement the methods at

osm-health/pkg/kubernetes/pod/containers.go

Lines 47 to 55 in e79f267

	// Suggestion implements common.Runnable
	func (check EnvoySidecarImageCheck) Suggestion() string {
	panic("implement me")
	}
	// FixIt implements common.Runnable
	func (check EnvoySidecarImageCheck) FixIt() error {
	panic("implement me")
	}

)
(2) Ensure that common.Runnable outcomes structs contain the newly implemented Suggestions() and FixIt()

osm-health/pkg/common/runner.go

Lines 7 to 11 in fae1393

	err := check.Run()
	outcomes[idx] = Outcome{
	RunnableInfo: check.Info(),
	Error: err,
	}

(3) Ensure that suggestions and fixit are printed here: https://github.com/openservicemesh/osm-health/blob/main/pkg/common/printer.go

[SanyaKochhar]

Part 1 (method implementation) has been checked. Can revisit 2 once 3 is completed.