Use Iterable instead of Seq in kyuubi-ctl commands

[bowenliang123]

Why are the changes needed?

• Use Iterable instead of Seq in kyuubi-ctl commands for Scala compatibility, as

1. in Scala 2.13, the scala.Seq is now an alias for scala.collection.immutable.Seq (instead of scala.collection.Seq)
2. in Scala 2.13, scala.collection.mutable.ListBuffer (or Buffers) does not extend scala.collection.immutable.Seq according to Scala collection migration guide
3. in both Scala 2.12 and 2.13, ListBuffer (or Buffers) extends scala.collection.mutable.Iterable

How was this patch tested?

• Add some test cases that check the changes thoroughly including negative and positive cases if possible

• Add screenshots for manual tests if appropriate

• Run test locally before make a pull request

Was this patch authored or co-authored using generative AI tooling?

[codecov-commenter]

Codecov Report

Merging #5179 (5e5561d) into master (4213e20) will not change coverage.
Report is 1 commits behind head on master.
The diff coverage is 0.00%.

❗ Current head 5e5561d differs from pull request most recent head 3265e3b. Consider uploading reports for the commit 3265e3b to get more accurate results

@@          Coverage Diff           @@
##           master   #5179   +/-   ##
======================================
  Coverage    0.00%   0.00%           
======================================
  Files         566     566           
  Lines       31699   31703    +4     
  Branches     4134    4134           
======================================
- Misses      31699   31703    +4     

Files Changed	Coverage Δ
...he/kyuubi/ctl/cmd/create/CreateServerCommand.scala	0.00% <0.00%> (ø)
...g/apache/kyuubi/ctl/cmd/delete/DeleteCommand.scala	0.00% <0.00%> (ø)
...he/kyuubi/ctl/cmd/delete/DeleteEngineCommand.scala	0.00% <ø> (ø)
...ala/org/apache/kyuubi/ctl/cmd/get/GetCommand.scala	0.00% <0.00%> (ø)
...g/apache/kyuubi/ctl/cmd/get/GetEngineCommand.scala	0.00% <ø> (ø)
...g/apache/kyuubi/ctl/cmd/get/GetServerCommand.scala	0.00% <ø> (ø)
...e/kyuubi/ctl/cmd/list/AdminListEngineCommand.scala	0.00% <0.00%> (ø)
...e/kyuubi/ctl/cmd/list/AdminListServerCommand.scala	0.00% <0.00%> (ø)
...a/org/apache/kyuubi/ctl/cmd/list/ListCommand.scala	0.00% <0.00%> (ø)
...apache/kyuubi/ctl/cmd/list/ListServerCommand.scala	0.00% <ø> (ø)
... and 2 more

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[bowenliang123]

Thanks, merged to master.