Skip test causing gRPC data race in sanitizer build

[canepat]

This PR skips one specific test in TSAN build because such test triggers some data race within the gRPC library in a very specific scenario.

The "BackEndKvServer E2E: trigger server-side write error" test is purposely written to cause write-errors on Tx RPC server-side implementation by using the bidirectional-streaming API in an unorthodox way, i.e. not reading responses after sending requests and making the Tx call end abruptly on client-side by grpc::ClientContext destruction.

Repeating this pattern many times triggers write-errors on Tx RPC server-side implementation and allows to check that server-side lifecycle management for Tx calls is OK but seems to result also in a frequent data race detection during sanitizer builds.

[codecov]

Codecov Report

Merging #642 (13d7901) into master (a992e85) will decrease coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #642      +/-   ##
==========================================
- Coverage   82.52%   82.47%   -0.06%     
==========================================
  Files         176      176              
  Lines       15237    15237              
==========================================
- Hits        12574    12566       -8     
- Misses       2663     2671       +8     

Impacted Files	Coverage Δ
core/silkworm/execution/evm.cpp	94.86% <0.00%> (-1.24%)	⬇️
core/silkworm/state/in_memory_state.cpp	94.14% <0.00%> (-0.98%)	⬇️

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[mriccobene]

ok