Security update for salt

Open Source Vulnerabilities openSUSE-SU-2021:0347-1

This update for salt fixes the following issues: - Fix regression on cmd.run when passing tuples as cmd (bsc#1182740) - Allow `extra_filerefs` as sanitized `kwargs` for SSH client - Fix errors with virt.update - Fix for multiple for security issues (CVE-2020-28243) (CVE-2020-28972) (CVE-2020-35662) (CVE-2021-3148) (CVE-2021-3144) (CVE-2021-25281) (CVE-2021-25282) (CVE-2021-25283) (CVE-2021-25284) (CVE-2021-3197) (bsc#1181550) (bsc#1181556) (bsc#1181557) (bsc#1181558) (bsc#1181559) (bsc#1181560) (bsc#1181561) (bsc#1181562) (bsc#1181563) (bsc#1181564) (bsc#1181565) - virt: search for `grub.xen` path - Xen spicevmc, DNS SRV records backports: - Fix virtual network generated DNS XML for SRV records - Don't add spicevmc channel to xen VMs - virt UEFI fix: virt.update when `efi=True` This update was imported from the SUSE:SLE-15-SP2:Update update project.