Fix password in integration test

[akstron]

Which problem is this PR solving?

Minor fix in cassandra initialization for integration test

Description of the changes

• Changed environment variable used for initialization

Checklist

• I have read https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
• I have signed all commits
• I have added unit tests for the new functionality
• I have run lint and test steps successfully
  • for jaeger: make lint test
  • for jaeger-ui: yarn lint and yarn test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.18%. Comparing base (39e3bfb) to head (5838310).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6284      +/-   ##
==========================================
- Coverage   96.20%   96.18%   -0.03%     
==========================================
  Files         356      356              
  Lines       20416    20416              
==========================================
- Hits        19642    19637       -5     
- Misses        585      589       +4     
- Partials      189      190       +1     

Flag	Coverage Δ
badger_v1	8.90% <ø> (ø)
badger_v2	1.63% <ø> (ø)
cassandra-4.x-v1-manual	14.84% <ø> (ø)
cassandra-4.x-v2-auto	1.57% <ø> (ø)
cassandra-4.x-v2-manual	1.57% <ø> (ø)
cassandra-5.x-v1-manual	14.84% <ø> (ø)
cassandra-5.x-v2-auto	1.57% <ø> (ø)
cassandra-5.x-v2-manual	1.57% <ø> (ø)
elasticsearch-6.x-v1	18.60% <ø> (ø)
elasticsearch-7.x-v1	18.67% <ø> (ø)
elasticsearch-8.x-v1	18.84% <ø> (-0.01%)	⬇️
elasticsearch-8.x-v2	1.62% <ø> (-0.01%)	⬇️
grpc_v1	10.37% <ø> (ø)
grpc_v2	7.91% <ø> (+<0.01%)	⬆️
kafka-v1	8.58% <ø> (ø)
kafka-v2	1.63% <ø> (ø)
memory_v2	1.63% <ø> (ø)
opensearch-1.x-v1	18.73% <ø> (ø)
opensearch-2.x-v1	18.73% <ø> (ø)
opensearch-2.x-v2	1.63% <ø> (ø)
tailsampling-processor	0.45% <ø> (ø)
unittests	95.09% <ø> (-0.03%)	⬇️

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[yurishkuro]

good catch

[yurishkuro]

Thanks!