🧪 Bump the change log CI job timeout to 4 min

3 min wasn't enough. `apt` is getting slow randomly due to
the Azure-hosted repos network:

    Thu, 21 Aug 2025 11:36:45 GMT Get:3 http://azure.archive.ubuntu.com/ubuntu noble/universe amd64 pandoc amd64 3.1.3+ds-2 [26.9 MB]
    Thu, 21 Aug 2025 11:39:24 GMT Fetched 26.9 MB in 2min 39s (169 kB/s)

Author: webknjaz

.github/workflows/ci-cd.yml

@@ -434,7 +434,7 @@ jobs:
     - pre-setup
     runs-on: ubuntu-latest
 
-    timeout-minutes: 3  # network is slow sometimes + GH Runners are flaky
+    timeout-minutes: 4  # network is slow sometimes + GH Runners are flaky
 
     env:
       TOXENV: make-changelog