fix: fix to prevent accepting file name

[da1suk8]

Description

Fixed to prevent accepting file name.
The file name to be downloaded in the current directory is contract-[code id].wasm

For example, if the code id is 3, the file name is contract-3.wasm

Motivation and context

This may cause security issues.

How has this been tested?

Please test by setting the relative path to the lbm-sdk in lbm.

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.
• I have updated the documentation accordingly.
• I have updated API documentation client/docs/swagger-ui/swagger.yaml

[codecov]

Codecov Report

Merging #690 (5a1c476) into main (580d404) will increase coverage by 0.40%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #690      +/-   ##
==========================================
+ Coverage   61.24%   61.64%   +0.40%     
==========================================
  Files         874      874              
  Lines       98546    98547       +1     
==========================================
+ Hits        60351    60747     +396     
+ Misses      34622    34234     -388     
+ Partials     3573     3566       -7     

Impacted Files	Coverage Δ
x/wasm/client/cli/query.go	93.84% <100.00%> (+93.84%)	⬆️
x/collection/msgs.go	34.25% <0.00%> (-7.23%)	⬇️
x/token/msgs.go	34.51% <0.00%> (-4.07%)	⬇️
x/collection/collection.go	78.57% <0.00%> (-1.79%)	⬇️
x/wasm/keeper/keeper.go	86.16% <0.00%> (+0.36%)	⬆️
crypto/keys/internal/ecdsa/privkey.go	84.21% <0.00%> (+1.75%)	⬆️