remove max timeout limit in schema

Author: shreemaan-abhishek

apisix/plugins/ai-proxy/schema.lua

@@ -139,7 +139,6 @@ _M.ai_proxy_schema = {
         timeout = {
             type = "integer",
             minimum = 1,
-            maximum = 60000,
             default = 30000,
             description = "timeout in milliseconds",
         },
@@ -196,7 +195,6 @@ _M.ai_proxy_multi_schema = {
         timeout = {
             type = "integer",
             minimum = 1,
-            maximum = 60000,
             default = 30000,
             description = "timeout in milliseconds",
         },