refactor(binding): use maps.Copy for cleaner map handling

[russcoss]

There is a new function added in the go1.21 standard library, which can make the code more concise and easy to read.

[russcoss]

@appleboy Hi, I have resolved the conflicts and rebased with the latest code. Please review it when you have time. Thanks.

[Copilot]

Pull Request Overview

This PR refactors the code to use the new maps.Copy function from Go 1.21 standard library to replace manual map copying with a more concise and idiomatic approach.

• Imports the maps package from Go 1.21 standard library
• Replaces manual for-loop map copying with maps.Copy function call

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.92%. Comparing base (3dc1cd6) to head (ab9bbf2).
⚠️ Report is 181 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4352      +/-   ##
==========================================
- Coverage   99.21%   98.92%   -0.29%     
==========================================
  Files          42       44       +2     
  Lines        3182     3441     +259     
==========================================
+ Hits         3157     3404     +247     
- Misses         17       26       +9     
- Partials        8       11       +3     

Flag	Coverage Δ
	?
--ldflags="-checklinkname=0" -tags sonic	98.91% <100.00%> (?)
-tags go_json	98.85% <100.00%> (?)
-tags nomsgpack	98.91% <100.00%> (?)
go-1.18	?
go-1.19	?
go-1.20	?
go-1.21	?
go-1.23	98.92% <100.00%> (?)
go-1.24	98.92% <100.00%> (?)
go-1.25	98.92% <100.00%> (?)
macos-latest	98.92% <100.00%> (-0.29%)	⬇️
ubuntu-latest	98.92% <100.00%> (-0.29%)	⬇️

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