fix(codec): add option to enable span cache and disable it by default

[joway]

What type of PR is this?

fix

Check the PR title.

• This PR title match the format: <type>(optional scope): <description>
• The description of this PR title is user-oriented and clear enough for others to understand.
• Attach the PR updating the user documentation if the current PR requires user awareness at the usage level. User docs repo

(Optional) Translate the PR title into Chinese.

fix(codec): 添加 option 开启 span cache，默认关闭

(Optional) More detailed description for this PR(en: English/zh: Chinese).

en:
zh(optional):

(Optional) Which issue(s) this PR fixes:

(optional) The PR that updates user documentation:

[codecov]

Codecov Report

Attention: Patch coverage is 51.25000% with 195 lines in your changes missing coverage. Please review.

Project coverage is 70.29%. Comparing base (ff5ca14) to head (658e8de).
Report is 60 commits behind head on main.

❗ Current head 658e8de differs from pull request most recent head e541ee2

Please upload reports for the commit e541ee2 to get more accurate results.

Files	Patch %	Lines
pkg/generic/thrift/json.go	0.00%	35 Missing ⚠️
pkg/generic/httppbthrift_codec.go	16.66%	25 Missing ⚠️
pkg/generic/generic_service.go	55.10%	18 Missing and 4 partials ⚠️
pkg/generic/thrift/json_go116plus_amd64.go	0.00%	19 Missing ⚠️
pkg/generic/mapthrift_codec.go	68.29%	11 Missing and 2 partials ⚠️
pkg/generic/jsonthrift_codec.go	66.66%	10 Missing and 2 partials ⚠️
pkg/generic/generic.go	71.42%	10 Missing ⚠️
pkg/generic/jsonpb_codec.go	56.52%	8 Missing and 2 partials ⚠️
pkg/generic/httpthrift_codec.go	70.96%	8 Missing and 1 partial ⚠️
pkg/generic/thrift/http_go116plus_amd64.go	12.50%	7 Missing ⚠️
... and 8 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1410      +/-   ##
==========================================
+ Coverage   70.13%   70.29%   +0.15%     
==========================================
  Files         289      293       +4     
  Lines       20874    21177     +303     
==========================================
+ Hits        14641    14886     +245     
- Misses       5025     5065      +40     
- Partials     1208     1226      +18     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

The base branch was changed.