change emoji for: notifying new kubernetes version is available

[radeksm]

Change emoji for telling that new kubernetes is available.

fixes #7792

[k8s-ci-robot]

Hi @radeksm. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: radeksm
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[minikube-bot]

Can one of the admins verify this patch?

[medyagh]

@radeksm do you mind putting the output before and after this PR ?

[radeksm]

@radeksm do you mind putting the output before and after this PR ?

@radeksm do you mind putting the output before and after this PR ?

Here is how it looks like:

[radek@c8k15 ~]$ ./minikube --v=4 --driver=docker --kubernetes-version=v1.17.0 start
😄 minikube v1.10.0-beta.0 on Centos 8.1.1911
✨ Using the docker driver based on user configuration
🆕 Kubernetes 1.18.0 is now available. If you would like to upgrade, specify: --kubernetes-version=1.18.0
👍 Starting control plane node minikube in cluster minikube
💾 Downloading Kubernetes v1.17.0 preload ...
> preloaded-images-k8s-v2-v1.17.0-docker-overlay2-amd64.tar.lz4: 539.92 MiB
🔥 Creating docker container (CPUs=2, Memory=1485MB) ...
🐳 Preparing Kubernetes v1.17.0 on Docker 19.03.2 ...

[radeksm]

Unitest failed but failure seems to be unrelated to my change:

2020-04-22T19:55:02.3881542Z --- FAIL: TestNewSSHClient (0.08s)
2020-04-22T19:55:02.3881741Z ssh_mock.go:176: Listening on 127.0.0.1:41431
2020-04-22T19:55:02.3881836Z ssh_mock.go:83: Accepting...
2020-04-22T19:55:02.3881939Z ssh_mock.go:83: Accepting...
2020-04-22T19:55:02.3882079Z ssh_mock.go:135: exec request received: &{Type:exec WantReply:true Payload:[0 0 0 3 102 111 111] ch:0xc0001ee780 mux:<nil>}
2020-04-22T19:55:02.3882232Z sshutil_test.go:67: Error running "foo": wait: remote command exited without exit status or exit signal
2020-04-22T19:55:02.3882357Z ssh_mock.go:192: Stopping
2020-04-22T19:55:02.3882449Z panic: Fail in goroutine after TestNewSSHClient has completed

[priyawadhwa]

LGTM, thanks for contributing!