perf: improve wasm block sync efficiency

[sherpalden]

• Implemented batch query for block transactions.
• Fetch only those transactions that are executed from the IBC handler contract.
• Pushed IBCHeader to IBCHeaderCache for required block height only.
• Removed block verification because the light client eventually verifies for any transaction. So, there's no need for additional verification in the relayer. After all, the relayer is trustless.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 283 lines in your changes missing coverage. Please review.

Project coverage is 11.02%. Comparing base (478dea5) to head (b370df3).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
relayer/chains/wasm/wasm_chain_processor.go	0.00%	179 Missing ⚠️
relayer/chains/wasm/query.go	0.00%	104 Missing ⚠️

❌ Your patch status has failed because the patch coverage (0.00%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #226      +/-   ##
==========================================
- Coverage   11.47%   11.02%   -0.46%     
==========================================
  Files          85       85              
  Lines       20409    20885     +476     
==========================================
- Hits         2342     2302      -40     
- Misses      17813    18339     +526     
+ Partials      254      244      -10     

Files with missing lines	Coverage Δ
relayer/chains/wasm/provider.go	0.00% <ø> (-25.00%)	⬇️
relayer/chains/wasm/query.go	0.00% <0.00%> (ø)
relayer/chains/wasm/wasm_chain_processor.go	0.00% <0.00%> (ø)

... and 7 files with indirect coverage changes