CLEANSTART-2026-FG88760 Security fixes in prometheus-mysqld-exporter 0.15.0-r3

Package prometheus-mysqld-exporter version 0.15.0-r3 fixes 6 vulnerabilities: CVE-2026-46595, CVE-2026-42508, CVE-2026-39833, CVE-2026-39821, CVE-2026-42506...