Security update for cni-plugins

This update for cni-plugins fixes the following issues:

cni-plugins updated to version 0.8.6

- CVE-2020-10749: Fixed a potential Man-in-the-Middle attacks in IPv4 clusters by spoofing IPv6 router advertisements (bsc#1172410).

Release notes:
https://github.com/containernetworking/plugins/releases/tag/v0.8.6

Fixed bugs
bnc#1172410
VUL-0: CVE-2020-10749: cni-plugins: containernetworking/plugins: IPv6 router advertisements allow for MitM attacks on IPv4 clusters
Selected Binaries
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