feat: use node18 as docker base image

[tailgo]

What kind of change does this PR introduce?

feature: use node-18 as docker base image.
fix: fix docker's readme wrong content.

Did you add tests for your changes?

yes.

If relevant, did you update the documentation?

fix some wrong content with docker's readme.

Summary

#9453

Does this PR introduce a breaking change?

May cause a breaking change while other user use latest tag docker image in their product.

Other information

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