add qps stats in report

[ii2day]

feature #269
fix #296
fix #297
1.添加任务执行 agent 中 qps 的统计，包含当前本任务,任务开始前日志打印 qps 统计，任务结束再 次获取 qps 统计，并写入报告
2.修改报告中 cpu memory 结构体，方便引用。
3.修改 netdns request中 数据类型为 int 与 http 保持一致
4.方便查看 e2e 结果，将e2e 中 task 报告打印格式为 yaml
5.删除重复用例

[codecov]

Codecov Report

Merging #273 (c3209d9) into main (59b6879) will increase coverage by 0.47%.
Report is 2 commits behind head on main.
The diff coverage is 59.09%.

@@            Coverage Diff             @@
##             main     #273      +/-   ##
==========================================
+ Coverage   39.52%   40.00%   +0.47%     
==========================================
  Files           8        8              
  Lines         544      555      +11     
==========================================
+ Hits          215      222       +7     
- Misses        323      326       +3     
- Partials        6        7       +1     

Flag	Coverage Δ
unittests	40.00% <59.09%> (+0.47%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
pkg/loadRequest/loadDns/dns_requester.go	85.89% <59.09%> (-1.69%)	⬇️

[ii2day]