chore(*): release 0.3.0

### Summary

- [style(lib/compat): update module version](#57)
- [tests(*): use resty.events.new correctly as documented](#59)
- [feat(protocol): send worker info (id and pid) to broker](#54)
- [fix(*): option validation of broker id](#62)
- [fix(broker): worker id based queues](#60)
- [chore(worker): actively close connection to broker on error](#63)
- [fix(*): retain events on send failures](#61)

lualib/resty/events/init.lua

@@ -13,7 +13,7 @@ local str_sub = string.sub
 local worker_count = ngx.worker.count()
 
 local _M = {
-    _VERSION = "0.2.1",
+    _VERSION = "0.3.0",
 }
 local _MT = { __index = _M, }