test(e2e): clear the account's write bucket when the setup flow resets

Every authenticated write is charged to the shared per-account bucket,
and the locale sweep drives one account through eighteen setup runs in
well under a minute, so its last case met the write ceiling. The reset
already cleared the flow's own buckets; it now clears that one too.

e2e/setup/setup-flow-fixture.ts

@@ -57,7 +57,8 @@ export async function resetSetupFlow(username: string): Promise<void> {
         WHERE key IN (
           'onboarding-answers:' || $1,
           'onboarding-restart:' || $1,
-          'managed-profile:create:' || $1
+          'managed-profile:create:' || $1,
+          'record-write:' || $1
         )`,
       [id],
     );