CLEANSTART-2026-KA71089 Security fixes in airflow-3 3.1.8-r2

Package airflow-3 version 3.1.8-r2 fixes 5 vulnerabilities: ghsa-r95x-qfjj-fjj2, CVE-2026-44681, CVE-2026-48710, ghsa-29h4-r29x-hchv, CVE-2026-8838...