fix(globals)!: disabled $_REQUEST super global function

BREAKING CHANGE: If you used `http_request_vars()` before it will now panic until a proper implementation is found.

Refs: #331

src/zend/globals.rs

@@ -284,9 +284,10 @@ impl ProcessGlobals {
 
     /// Get the HTTP Request variables. Equivalent of $_REQUEST.
     pub fn http_request_vars(&self) -> &ZendHashTable {
-        self.http_globals[TRACK_VARS_REQUEST as usize]
-            .array()
-            .expect("Type is not a ZendArray")
+        todo!("$_REQUEST super global was erroneously fetched from http_globals which resulted in an out-of-bounds access. A new implementation is needed.");
+        // self.http_globals[TRACK_VARS_REQUEST as usize]
+        //     .array()
+        //     .expect("Type is not a ZendArray")
     }
 
     /// Get the HTTP Environment variables. Equivalent of $_ENV.