Release 2.2.1

变更日志：

1. fun config 中可选的 regions 与线上保持一致
2. fun config 支持 timeout 配置，该配置会允许 sls、ots、fc 等 client 的 timeout 属性
3. 为更多操作添加 retry 逻辑，使得用户在非常差的网络下也能够顺利使用 fun
4. 修复了 ots instance name 的 pattern
5. api gateway 添加了常量参数的支持
6. 修复了 sls 触发器无法被触发的 bug

Changelog：

1. Synchronize fun config regions with oneline
2. Fun config supports timeout configuration, which will set the timeout attribute of sls client, ots client, fc client, etc.
3. Add retry logic for more operations, allowing users to use fun on very bad network environment.
4. Fixed pattern of ots instance name.
5. Api gateway added support for Constant Parameters
6. Fixed bug: sls trigger could not be triggered

Download:

fun-v2.2.1-linux-x64.zip
fun-v2.2,1-linux-x86.zip
fun-v2.2.1-macos-x64.zip
fun-v2.2.1-macos-x86.zip
fun-v2.2.1-win-x64.exe.zip
fun-v2.2.1-win-x86.exe.zip