fix(docs): typo in authorization header example (#33770)

apps/docs/content/guides/functions/schedule-functions.mdx

@@ -47,7 +47,7 @@ select
           url:= (select decrypted_secret from vault.decrypted_secrets where name = 'project_url') || '/functions/v1/function-name',
           headers:=jsonb_build_object(
             'Content-type', 'application/json',
-            'Authorization', 'Bearer: ' || (select decrypted_secret from vault.decrypted_secrets where name = 'anon_key')
+            'Authorization', 'Bearer ' || (select decrypted_secret from vault.decrypted_secrets where name = 'anon_key')
           ),
           body:=concat('{"time": "', now(), '"}')::jsonb
       ) as request_id;