fix(rpc): chain-id in grpc query is not initialized without abci event (backport: #1405)

[mmsqe]

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Description

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[codecov]

Codecov Report

Merging #215 (68b4541) into release/v0.20.x-cronos (9b24b9b) will increase coverage by 0.12%.
The diff coverage is 33.33%.

@@                    Coverage Diff                     @@
##           release/v0.20.x-cronos     #215      +/-   ##
==========================================================
+ Coverage                   57.27%   57.39%   +0.12%     
==========================================================
  Files                         108      108              
  Lines                       10104    10082      -22     
==========================================================
  Hits                         5787     5787              
+ Misses                       4071     4049      -22     
  Partials                      246      246              

Impacted Files	Coverage Δ
rpc/backend/call_tx.go	0.00% <0.00%> (ø)
rpc/backend/tracing.go	0.00% <0.00%> (ø)
x/evm/keeper/grpc_query.go	87.58% <100.00%> (ø)