Upgrade storage integration tests to Storage v2 API

[Ayush-Vish]

Which problem is this PR solving?

Fixes #6366

Description of the changes

• Added test for the TraceReader

How was this change tested?

• make test

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: npm run lint and npm run test

[Ayush-Vish]

@yurishkuro I have Added a test for the TraceReader
Could you let me know if I am in the right direction?
Thanks.

[yurishkuro]

I don't think you understood the objective of the issue. This PR doesn't address it in any way. I never said we need "a test for v2 reader".

[yurishkuro]

There is an extensive README about integration tests in cmd/jaeger/internal/integration. We're missing another one in the base module plugin/storage/integration, I will see if I can add one.