json2: make the deprecated decoder2 fns public (#25498)

Author: gechandesu

vlib/x/json2/decoder2/stub.v

@@ -2,14 +2,16 @@ module decoder2
 
 import x.json2
 
+// decode decodes a JSON string into a specified type.
 @[deprecated: '`decode` has been moved to `x.json2`, use `decode` from `x.json2` instead']
 @[deprecated_after: '2025-10-12']
-fn decode[T](val string) !T {
-	return json2.decode[T](val)
+pub fn decode[T](val string) !T {
+	return json2.decode[T](val)!
 }
 
-@[deprecated: '`decode` has been moved to `x.json2`, use `decode` from `x.json2` instead']
+// decode_array decodes a JSON string into a specified type. This is the same as decode.
+@[deprecated: '`decode_array` has been moved to `x.json2`, use `decode` from `x.json2` instead']
 @[deprecated_after: '2025-03-18']
-fn decode_array[T](src string) !T {
-	return json2.decode[T](src)
+pub fn decode_array[T](src string) !T {
+	return json2.decode[T](src)!
 }