Releases: Update website to use Cloud Storage v1 API

Requests to the v1beta2 API stopped working recently, and the v1 API
has been released. Nothing in the migration notes[1] seems to apply to
us, and the page renders with no JS errors.

[1] https://cloud.google.com/storage/docs/json_api/v1/how-tos/migrate

Change-Id: I59357487f20f8abf3398531eb34a06aa765c6be9
diff --git a/website/releases/index.html b/website/releases/index.html
index b8d7905..8aedc6b 100644
--- a/website/releases/index.html
+++ b/website/releases/index.html
@@ -39,7 +39,7 @@
 
 <script>
 $.getJSON(
-'https://www.googleapis.com/storage/v1beta2/b/gerrit-releases/o?projection=noAcl&fields=items(name%2Csize)&callback=?',
+'https://www.googleapis.com/storage/v1/b/gerrit-releases/o?projection=noAcl&fields=items(name%2Csize)&callback=?',
 function(data) {
   var doc = document;
   var frg = doc.createDocumentFragment();