ci: publish docker image on tag push

[0Tech]

It makes CI to publish the docker image on tag pushes.

Description

It adds a workflow which publishes the docker image on tag push event.
The destination is docker.io/line/lbm-simapp for now.
The image tag would be the corresponding semver and latest.

closes: #455

Motivation and context

Refer to #455

How has this been tested?

The PR will trigger the workflow. And I confirmed it works, I will revert the commit which triggers the workflow on PR.

Checklist:

• I followed the contributing guidelines and code of conduct.
• I have added a relevant changelog to CHANGELOG.md
• I have added tests to cover my changes. [no need]
• I have updated the documentation accordingly. [no need]
• I have updated API documentation client/docs/swagger-ui/swagger.yaml [no need]

[0Tech]

I have confirmed it working.
You can check it at: https://hub.docker.com/r/line/lbm-simapp/tags
After the merge, it (pr-469) should be removed.

[zemyblue]

Could you add the release version as a tag when merge a release PR?
I think it's better to push the docker image when the release note is wrote. Can an action do this?

[0Tech]

Could you add the release version as a tag when merge a release PR? I think it's better to push the docker image when the release note is wrote. Can an action do this?

I think it's possible, let me change the condition.

But I think it would be better to create "release" after we confirmed the docker image works. It means we should push the image before the "release".

[zemyblue]

LGTM