Update all dependencies with "cargo upgrade" with the exception of
vmm-sys-utils which needs some extra porting work.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Rather than relying on shared memory for a temporary file for QCOW
testing instead use tempfile crate to get a temporary file. The vector
cache tests also need a trivial update after the refactor.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
