[update] 🐔 2.4.2

Update requirements.txt

[update] 🐭 docker ci

[update] TIMEZONE

[update] changelog.rst

[update] unProxyCheck时,剩余代理少于POOL_SIZE_MIN时执行抓取

Merge pull request #485 from tinker-li/patch-1

fix some doubts

Merge pull request #370 from jhao104/develop

[update] add log dir

[update] docker

v1.14