Fix --dry-run for TXs

[BrandonWeng]

Describe your changes and provide context

Cherry picks this change: cosmos/cosmos-sdk@4f1cc3a and some additional changes in client/tx/factory.go

Testing performed to validate your change

Goign to add integration tests in sei-chain for this and muilti-sig transactions

Unit tests and ran locally:

> seid tx bank send sei15nmrq83e2n25x9hzzhv8pchfaetda9jjyqwj4a sei15nmrq83e2n25x9hzzhv8pchfaetda9jjyqwj4a 1sei --from sei15nmrq83e2n25x9hzzhv8pchfaetda9jjyqwj4a  --chain-id sei-chain -b block -y --fees 20000usei --dry-run
gas estimate: 69765

[codecov]

Codecov Report

Merging #306 (2ea7b8a) into main (24b93d5) will increase coverage by 0.03%.
The diff coverage is 57.14%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #306      +/-   ##
==========================================
+ Coverage   55.36%   55.39%   +0.03%     
==========================================
  Files         620      620              
  Lines       51611    51626      +15     
==========================================
+ Hits        28572    28598      +26     
+ Misses      20958    20946      -12     
- Partials     2081     2082       +1     

Impacted Files	Coverage Δ
client/flags/flags.go	21.05% <0.00%> (ø)
x/auth/client/cli/tx_sign.go	0.00% <0.00%> (ø)
client/tx/factory.go	29.04% <52.94%> (+0.54%)	⬆️
client/context.go	63.38% <90.90%> (+11.14%)	⬆️
client/cmd.go	58.95% <100.00%> (ø)

... and 1 file with indirect coverage changes