fix(context): make context Value method adhere to Go standards

[FarmerChillax]

This PR modifies the Value method in the Context struct of context.go. The purpose of this change is to make the Value method more in line with Go language standards.

slove issue #3888

see more: https://pkg.go.dev/context#WithValue

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.18%. Comparing base (3dc1cd6) to head (e09167d).
Report is 25 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3897      +/-   ##
==========================================
- Coverage   99.21%   99.18%   -0.03%     
==========================================
  Files          42       43       +1     
  Lines        3182     2701     -481     
==========================================
- Hits         3157     2679     -478     
+ Misses         17       12       -5     
- Partials        8       10       +2     

Flag	Coverage Δ
	?
-race	∅ <ø> (?)
-tags "sonic avx"	99.17% <100.00%> (?)
-tags go_json	99.17% <100.00%> (?)
-tags nomsgpack	99.17% <100.00%> (?)
go-1.18	99.11% <100.00%> (-0.01%)	⬇️
go-1.19	99.18% <100.00%> (-0.03%)	⬇️
go-1.20	99.18% <100.00%> (-0.03%)	⬇️
go-1.21	99.18% <100.00%> (-0.03%)	⬇️
go-1.22	99.18% <100.00%> (?)
macos-latest	99.18% <100.00%> (-0.03%)	⬇️
ubuntu-latest	99.18% <100.00%> (-0.03%)	⬇️

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