v1.3.3-Greenwich

bugfix

• fix websocket establish wss error (#212)
• fix watch switch not work (#210)
• fix inner class generate swagger error (#213)

enhance

• make register async (#215)

update dependency

• upgrade snakeyaml from 1.24 to 1.26 (#215)
• upgrade jackson-databind from 2.9.10.3 to 2.9.10.4 (#193)