[MC-269660] arguments.item.predicate.unknown quotes are different

The quotes in arguments.item.predicate.unknown are different.

Translation Key	Current String	Expected String
arguments.item.predicate.unknown	Unknown item predicate '%s''	Unknown item predicate '%s'

Display the affected string by using the command provided below.
```
/tellraw @s {"translate":"arguments.item.predicate.unknown"}
```
Look closely at the affected quotes within the string.