SUSE-SU-2021:1951-1

This update for salt fixes the following issues:

• Check if dpkgnotify is executable (bsc#1186674)
• Update to Salt release version 3002.2 (jsc#ECO-3212, jsc#SLE-18033, jsc#SLE-18028)
• Drop support for Python2. Obsoletes python2-salt package (jsc#SLE-18028)
• Fix issue parsing errors in ansiblegate state module
• Prevent command injection in the snapper module (bsc#1185281, CVE-2021-31607)
• transactional_update: detect recursion in the executor
• Add subpackage salt-transactional-update (jsc#SLE-18033)
• Remove duplicate directories