Update proxy version

docker-compose.yml

@@ -923,7 +923,7 @@ services:
     hostname: proxy
     <<: *x-logging
     stop_signal: SIGINT
-    image: openruntimes/proxy:0.3.1
+    image: openruntimes/proxy:0.5.4
     networks:
       - appwrite
       - runtimes

src/Appwrite/Functions/Validator/Headers.php

@@ -47,10 +47,6 @@ class Headers extends Validator
             return false;
         }
 
-        if (json_last_error() !== JSON_ERROR_NONE) {
-            return false;
-        }
-
         if (\is_array($value)) {
             foreach ($value as $key => $val) {
                 $length = \strlen($key);