Tests (compare of exec.Command in gomock) fail on Go1.20

[zhsj]

Hi, with Go1.20, I fail to run the tests on master.

For example,

$ go test -v -run '^TestRunYumUpdateWithSecurity$' ./ospatch/
=== RUN   TestRunYumUpdateWithSecurity
    yum.go:160: Unexpected call to *utilmocks.MockCommandRunner.Run([context.Background /usr/bin/yum check-update --assumeyes]) at /tmp/t/osconfig/packages/yum.go:160 because: 
        expected call at /tmp/t/osconfig/ospatch/yum_update_test.go:52 doesn't match the argument at index 1.
        Got: /usr/bin/yum check-update --assumeyes (*exec.Cmd)
        Want: is equal to /usr/bin/yum check-update --assumeyes (*exec.Cmd)
        expected call at /tmp/t/osconfig/ospatch/yum_update_test.go:54 doesn't match the argument at index 1.
        Got: /usr/bin/yum check-update --assumeyes (*exec.Cmd)
        Want: is equal to /usr/bin/yum install --assumeyes foo (*exec.Cmd)
        expected call at /tmp/t/osconfig/ospatch/yum_update_test.go:57 doesn't match the argument at index 1.
        Got: /usr/bin/yum check-update --assumeyes (*exec.Cmd)
        Want: is equal to /usr/bin/yum update --assumeno --cacheonly --color=never --security (*exec.Cmd)
    controller.go:269: missing call(s) to *utilmocks.MockCommandRunner.Run(is equal to context.Background (*context.emptyCtx), is equal to /usr/bin/yum check-update --assumeyes (*exec.Cmd)) /tmp/t/osconfig/ospatch/yum_update_test.go:52
    controller.go:269: missing call(s) to *utilmocks.MockCommandRunner.Run(is equal to context.Background (*context.emptyCtx), is equal to /usr/bin/yum install --assumeyes foo (*exec.Cmd)) /tmp/t/osconfig/ospatch/yum_update_test.go:54
    controller.go:269: missing call(s) to *utilmocks.MockCommandRunner.Run(is equal to context.Background (*context.emptyCtx), is equal to /usr/bin/yum update --assumeno --cacheonly --color=never --security (*exec.Cmd)) /tmp/t/osconfig/ospatch/yum_update_test.go:57
    controller.go:269: aborting test due to missing call(s)
--- FAIL: TestRunYumUpdateWithSecurity (0.01s)
FAIL
FAIL    github.com/GoogleCloudPlatform/osconfig/ospatch 0.016s
FAIL

I think it's because Go1.20 adds a function to exec.Command struct, which is not comparable.
golang/go@55eaae4