Support custom port in cassandra schema creation

[MarianZoll]

what:

• considered CQLSH_PORT in schema creation port
  why:
• unable to create schema in Cassandra instances not exposing 9042

Signed-off-by: Marian Zoll Marian.Zoll@web.de

Which problem is this PR solving?

Fixes #2467

Short description of the changes

• Added support for CQLSH_PORT in docker.sh for schema creations.

[codecov]

Codecov Report

Merging #2472 into master will decrease coverage by 0.03%.
The diff coverage is 98.07%.

@@            Coverage Diff             @@
##           master    #2472      +/-   ##
==========================================
- Coverage   95.58%   95.54%   -0.04%     
==========================================
  Files         208      208              
  Lines       10679    10750      +71     
==========================================
+ Hits        10207    10271      +64     
- Misses        399      404       +5     
- Partials       73       75       +2     

Impacted Files	Coverage Δ
ports/ports.go	100.00% <ø> (ø)
cmd/query/app/server.go	90.69% <96.29%> (-0.42%)	⬇️
cmd/query/app/flags.go	100.00% <100.00%> (ø)
plugin/storage/es/dependencystore/storage.go	90.74% <100.00%> (+0.17%)	⬆️
plugin/storage/es/factory.go	100.00% <100.00%> (ø)
plugin/storage/es/options.go	100.00% <100.00%> (ø)
plugin/storage/es/spanstore/reader.go	100.00% <100.00%> (ø)
plugin/storage/es/spanstore/service_operation.go	100.00% <100.00%> (ø)
plugin/storage/grpc/shared/grpc_client.go	85.96% <100.00%> (ø)
cmd/agent/app/reporter/grpc/builder.go	95.45% <0.00%> (-4.55%)	⬇️
... and 2 more

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[joe-elliott]

Manually tested this locally and confirmed it worked.