Release v1.2.0

What's Changed

• Support Swow v1.1.0 by @huangdijia in #5
• Bump workerman to 4.1.6 by @huangdijia in #6
• Optimze ci by @huangdijia in #7
• Optimize ci by @huangdijia in #8
• Adds workerman 5 support by @huangdijia in #9
• Change the minimum version requirement of workerman/gateway-worker to ^3.0.27|^4.0. by @huangdijia in #10

Full Changelog: v1.1.0...v1.2.0