Use server-side endpoint to properly cache GH release data

src/pages/api/releases.js

@@ -0,0 +1,6 @@
+import cachedFetch from "utils/proxy/cached-fetch";
+
+export default async function handler(req, res) {
+  const releasesURL = "https://api.github.com/repos/benphelps/homepage/releases";
+  return res.send(await cachedFetch(releasesURL, 5));
+}