Automatic merge from submit-queue (batch tested with PRs 41535, 45985, 45929, 45948, 46056)
kubelet/envvars: Adding brackets to IPv6 addresses
Signed-off-by: André Martins <aanm90@gmail.com>
**What this PR does / why we need it**: This adds IPv6 brackets on environments variables pods
**Special notes for your reviewer**:
Since the IP is a string I think the fastest way to detect if it's an IPv6 was to check for the presence of `:` in it. Let me know what you think.
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