Use HEAD method in loadImageHashFromPetName fetch

src/server/load-pet-data.js

@@ -58,6 +58,7 @@ const PETS_CP_URL_PATTERN =
   /https?:\/\/pets\.neopets\.com\/cp\/([a-z0-9]+)\/[0-9]+\/[0-9]+\.png/;
 async function loadImageHashFromPetName(petName) {
   const res = await fetch(`https://pets.neopets.com/cpn/${petName}/1/1.png`, {
+    method: "HEAD",
     redirect: "manual",
   });
   if (res.status !== 302) {