HDDS-11837. Support executing multiple commands in Ozone CLI

[adoroszlai]

What changes were proposed in this pull request?

Support batch mode in Ozone CLI subcommands which already have --interactive mode enabled, by adding repeatable --execute <cmd> option.

This allows running multiple commands with the same invocation, like:

ozone sh \
  --execute 'volume create /vol1' \
  --execute 'bucket create /vol1/bucket1'

Update Robot tests to utilize batch mode in few test cases.

(Initially I wanted to use input redirection. It is still supported, but Robot tests are not great with here-docs.)

Also fix a warning from TailTipWidgets when running without TTY.

https://issues.apache.org/jira/browse/HDDS-11837

How was this patch tested?

CI:
https://github.com/adoroszlai/ozone/actions/runs/12871125080