feat: bumpup ibc-go to v4

[loloicci]

This PR merges CosmWasm#1088 and CosmWasm#1180 without ICA part.

How has this been tested?

unit tests (go test ./...)

Screenshots (if appropriate):

Checklist:

• I followed the contributing guidelines and code of conduct.
• I have added a relevant changelog to CHANGELOG.md
• I have added tests to cover my changes. (not needed)
• I have updated the documentation accordingly. (not needed)
• I have updated API documentation client/docs/swagger-ui/swagger.yaml (not needed)

[codecov]

Codecov Report

Merging #61 (3494e8b) into main (164efa4) will increase coverage by 1.16%.
The diff coverage is 74.02%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #61      +/-   ##
==========================================
+ Coverage   60.86%   62.02%   +1.16%     
==========================================
  Files          80       80              
  Lines        9894     9971      +77     
==========================================
+ Hits         6022     6185     +163     
+ Misses       3555     3450     -105     
- Partials      317      336      +19     

Files Changed	Coverage Δ
app/ante.go	56.09% <ø> (ø)
app/test_access.go	0.00% <ø> (ø)
app/test_helpers.go	0.64% <0.00%> (-0.01%)	⬇️
x/wasm/keeper/handler_plugin.go	82.50% <ø> (ø)
x/wasm/keeper/handler_plugin_encoders.go	77.65% <ø> (ø)
x/wasm/keeper/ibc.go	75.00% <ø> (ø)
x/wasm/keeper/query_plugins.go	75.18% <ø> (ø)
x/wasm/ibc.go	50.86% <40.00%> (+42.06%)	⬆️
x/wasm/keeper/relay.go	96.42% <50.00%> (-0.94%)	⬇️
app/app.go	88.77% <100.00%> (+0.76%)	⬆️
... and 1 more

... and 2 files with indirect coverage changes