Integration tests were running with latest Go release rather than the
version used everywhere else. Also, we don't need to install protoc from
tarball and also apt-get the package for Ubuntu when used as a
dependency for criu build.
Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com>
Also few changes to names of workflow jobs. Integration tests can get
canceled without full completing at 10 minutes. Make sure we only use
checkout v2 action.
Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com>