acc: Raise timeout for cloud tests (#2806)

## Changes
Raise timeout for acceptance tests from 2m to 25m.

Follow up to #2793

## Why
I forgot that we don't run the slowest tests on PR, they only run on
push.

Author: denik

acceptance/test.toml

@@ -5,7 +5,11 @@ Cloud = false
 # default timeouts
 Timeout = '20s'
 TimeoutWindows = '60s'
-TimeoutCloud = '120s'
+
+# Slowest test I saw:
+# github.com/databricks/cli/acceptance TestAccept/bundle/integration_whl/interactive_single_user 18m8.69s
+# http://go/deco/tests/14775362030/job/41482560953
+TimeoutCloud = '25m'
 
 Env.PYTHONDONTWRITEBYTECODE = "1"
 EnvRepl.PYTHONDONTWRITEBYTECODE = false