[fix][docs] fix k8s dockerfile

[liumengkai]

Purpose of this pull request

Fix dockerfile problem,now the dockerfile like this:

...
RUN cd ${SEATUNNEL_HOME}||sh bin/install-plugin.sh ${SEATUNNEL_VERSION}
...

problems:

1. should use && not ||
2. In dockerfile cd command can not change the work dirrectory, although we can exec the command,but we are not 'in' the ${SEATUNNEL_HOME} so command can not find plugin_config file

pathc has been tested

Check list

• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If you are contributing the connector code, please check that the following files are updated:
  1. Update change log that in connector document. For more details you can refer to connector-v2
  2. Update plugin-mapping.properties and add new connector information in it
  3. Update the pom file of seatunnel-dist
• Update the release-note.

[Hisoka-X]

cc @xiamidavid00

[Hisoka-X]

Could you follow the guide to open your fork repository CI?

[liumengkai]

Could you follow the guide to open your fork repository CI?

sure! already done

[liumengkai]

Hi @Hisoka-X
I have already open my fork repository CI ,It's there anything I can do ?

[hailin0]

[hailin0]

It looks like someone else has fixed this issue #6475

Thanks for your contribution, this PR needs to be closed