Security update for salt

This update for salt fixes the following issues:

- Support querying for JSON data in external sql pillar.
- Exclude the full path of a download URL to prevent injection of malicious code.
(bsc#1190265, CVE-2021-21996)

This update was imported from the SUSE:SLE-15-SP2:Update update project.

Fixed bugs
bnc#1190265
VUL-0: CVE-2021-21996: salt: root exploit on minion when able to access a file source
Selected Binaries
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