improve trace span generating for package gctx and http tracing content for package ghttp

[will0306]

1、项目底层上流调用链上报了WithCtx，此处干扰视线，影响界面显示，没法正常直观得看到展示的调用层
2、调用链上报的operation 是url, 这样会导致openration遍地繁衍，杂乱无章，如果想看具体请求业务日志，应当去日志系统查看

[codecov-commenter]

Codecov Report

Patch coverage: 77.28% and project coverage change: -0.02% ⚠️

Comparison is base (74bf1b4) 79.15% compared to head (cf99c58) 79.14%.
Report is 11 commits behind head on master.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2937      +/-   ##
==========================================
- Coverage   79.15%   79.14%   -0.02%     
==========================================
  Files         638      639       +1     
  Lines       52570    52617      +47     
==========================================
+ Hits        41611    41642      +31     
- Misses       8892     8909      +17     
+ Partials     2067     2066       -1     

Flag	Coverage Δ
go-1.18-386	79.16% <77.28%> (-0.03%)	⬇️
go-1.18-amd64	79.21% <77.28%> (+<0.01%)	⬆️
go-1.19-386	79.08% <77.28%> (-0.02%)	⬇️
go-1.19-amd64	79.03% <77.28%> (-0.07%)	⬇️
go-1.20-386	79.21% <77.28%> (-0.03%)	⬇️
go-1.20-amd64	79.13% <77.28%> (-0.07%)	⬇️

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Files Changed	Coverage Δ
container/gmap/gmap_hash_str_any_map.go	98.20% <ø> (ø)
container/gset/gset_any_set.go	99.15% <ø> (ø)
contrib/nosql/redis/redis.go	83.90% <0.00%> (-5.12%)	⬇️
database/gdb/gdb.go	68.34% <ø> (ø)
database/gdb/gdb_result.go	36.00% <ø> (+3.85%)	⬆️
database/gredis/gredis_config.go	77.41% <ø> (ø)
internal/instance/instance.go	100.00% <ø> (ø)
os/gcache/gcache.go	96.77% <ø> (ø)
os/gtime/gtime.go	86.93% <ø> (ø)
text/gregex/gregex_cache.go	100.00% <ø> (ø)
... and 24 more

... and 3 files with indirect coverage changes

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