tests/common: migrate auth tests #2

[chaochn47]

Signed-off-by: Chao Chen chaochn@amazon.com

Please read https://github.com/etcd-io/etcd/blob/main/CONTRIBUTING.md#contribution-flow.

Related to #14041

[ahrtr]

Please resolve the test failure.

panic: etcdserver: authentication failed, invalid user ID or password

goroutine 671 [running]:
go.etcd.io/etcd/tests/v3/framework/testutils.MustClient(...)
	/home/runner/work/etcd/etcd/tests/framework/testutils/helpters.go:68
go.etcd.io/etcd/tests/v3/common.TestAuthGracefulDisable.func1()
	/home/runner/work/etcd/etcd/tests/common/auth_test.go:79 +0x499
go.etcd.io/etcd/tests/v3/framework/testutils.ExecuteUntil.func1()
	/home/runner/work/etcd/etcd/tests/framework/testutils/execute.go:38 +0x5b
created by go.etcd.io/etcd/tests/v3/framework/testutils.ExecuteUntil
	/home/runner/work/etcd/etcd/tests/framework/testutils/execute.go:36 +0xca

[chaochn47]

The test failure is resolved now.