feat: relax resource name length restriction to 256 (#11822)

Author: csotiriou

apisix/schema_def.lua

@@ -101,7 +101,7 @@ local labels_def = {
 
 local rule_name_def = {
     type = "string",
-    maxLength = 100,
+    maxLength = 256,
     minLength = 1,
 }
 

t/admin/services.t

@@ -1224,7 +1224,7 @@ qr/\{"error_msg":"the property is forbidden:.*"\}/
         content_by_lua_block {
             local t = require("lib.test_admin").test
             local code, body = t('/apisix/admin/services/1', ngx.HTTP_PUT,
-                require("toolkit.json").encode({name = ("1"):rep(101)}))
+                require("toolkit.json").encode({name = ("1"):rep(257)}))
 
             ngx.status = code
             ngx.print(body)
@@ -1234,7 +1234,7 @@ qr/\{"error_msg":"the property is forbidden:.*"\}/
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"name\" validation failed: string too long, expected at most 100, got 101"}
+{"error_msg":"invalid configuration: property \"name\" validation failed: string too long, expected at most 256, got 257"}