chore(tests_integration): return tx sender address

[Itay-Tsabary-Starkware]

Stack:

• chore(tests_integration): add nonce verification #2071
• chore(config): add sequencer address as required param #2070
• chore(tests_integration): return tx sender address #2056 ⬅
• chore(tests_integration): maintain batcher storage reader #2055

⚠️ Part of a stack created by spr. Do not merge manually using the UI - doing so may have unexpected results.

[reviewable-StarkWare]

This change is 

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 33.88%. Comparing base (f7eec9b) to head (d4e1db2).

Additional details and impacted files

@@                   Coverage Diff                   @@
##             spr/main/e71902fe    #2056      +/-   ##
=======================================================
  Coverage                     ?   33.88%              
=======================================================
  Files                        0      267     +267     
  Lines                        0    31054   +31054     
  Branches                     0    31054   +31054     
=======================================================
+ Hits                         0    10522   +10522     
- Misses                       0    19560   +19560     
- Partials                     0      972     +972     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.