Add back default UNIX env to container config

Due to changes to the defaults in containerd, the CRI path to creating a
container OCI config needs to add back in the default UNIX $PATH (and
any other defaults) as that is the expected behavior from other
runtimes.

Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com>

pkg/server/container_create_unix.go

@@ -112,6 +112,7 @@ func (c *criService) containerSpec(id string, sandboxID string, sandboxPid uint3
 		customopts.WithoutDefaultSecuritySettings,
 		customopts.WithRelativeRoot(relativeRootfsPath),
 		customopts.WithProcessArgs(config, imageConfig),
+		oci.WithDefaultPathEnv,
 		// this will be set based on the security context below
 		oci.WithNewPrivileges,
 	}