Extend default timeout for nested VM integration run
Extend default timeout for nested VM integration run

When integration tests are run under nested VM (for SELinux, Cgroupsv2
testing) they are regularly starting to push past 10 minutes, causing
`go test` to fatally kill the test run (default timeout is 10m).

Signed-off-by: Phil Estes <dbac1f450dc8326caa7ba104b384a0eca642250c@amazon.com>

mikebrow/containerd,dmcgowan/containerd,thaJeztah/containerd,thaJeztah/containerd,containerd/containerd,estesp/containerd,vdemeester/containerd,dmcgowan/containerd,mikebrow/containerd,containerd/containerd,vdemeester/containerd,estesp/containerd