fq：add golang max threads

[scf0220]

• Targeted PR against correct branch (see CONTRIBUTING.md)

• [ ] Linked to github-issue with discussion and accepted design OR link to spec that describes this work.

• [ ] Wrote tests

• [ ] Updated relevant documentation (docs/)

• [ ] Added a relevant changelog entry to the Unreleased section in CHANGELOG.md

• [ ] Reviewed Files changed in the github PR explorer

---

For Admin Use:

• Added appropriate labels to PR (ex. wip, ready-for-review, docs)
• Reviewers Assigned
• Squashed all commits, uses message "Merge PR #XYZ: [title]" (coding standards)

[codecov-commenter]

Codecov Report

Merging #3135 (cc8e995) into dev (b3b958c) will increase coverage by 0.00%. The diff coverage is 0.00%.

:exclamation: Current head cc8e995 differs from pull request most recent head ef34c93. Consider uploading reports for the commit ef34c93 to get more accurate results

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@@           Coverage Diff           @@
##              dev    #3135   +/-   ##
=======================================
  Coverage   35.82%   35.82%           
=======================================
  Files         437      437           
  Lines       46060    46062    +2     
=======================================
+ Hits        16500    16502    +2     
- Misses      28351    28352    +1     
+ Partials     1209     1208    -1     

Impacted Files	Coverage Δ
app/app.go	81.54% <0.00%> (-0.31%)	:arrow_down:
app/repair_state.go	0.00% <ø> (ø)

... and 1 file with indirect coverage changes