Use ++$i over $i++ outside of loops in Wikidata fetcher

This is a slightly more performant way of incrementing an integer.

src/NodaWikidataFetcher.php

@@ -287,7 +287,7 @@ final class NodaWikidataFetcher {
             $part1 = substr($input, 0, strpos($input, ".mw-parser-output"));
             $part2 = substr($input, strpos($input, "}", strpos($input, ".mw-parser-output")) + 1);
             $input = $part1 . $part2;
-            $i++;
+            ++$i;
             if ($i === 30) break;
         }