99-gce.rules attempts to set 'noop' scheduler, which isn't available in 5.x kernel

"GCE request" seems to indicate a preference for the 'noop' scheduler, but w/ a recently created GCE instance using the Ubuntu18 image & 5.3.0-1029-gcp kernel, noop is not an available option (only 'none' and 'mq-deadline' are available). Apparently 5.0 kernels no longer support non-multiqueue I/O schedulers (https://kernelnewbies.org/Linux_5.0#Block_layer), so this should be changed to "none", although for backwards compatibility with pre-5.0 kernels with 'noop' support, some kind of check will be necessary (unfortunately I'm not familiar enough w/ udev to know if this is possible within the udev rules file itself, or if it'd have to be done at the dpkg/config level).

## cat /sys/block/sdb/queue/scheduler
[none] mq-deadline

## cat /lib/udev/rules.d/99-gce.rules
# Give syslog write access to the kernel logs
KERNEL=="console", GROUP="syslog", MODE="0620"

# Switch to using NOOP as the default scheduler per GCE request
SUBSYSTEM=="block", ENV{DEVTYPE}!="partition", ACTION=="add|change", ENV{ID_VENDOR}=="*Google*", ATTR{queue/scheduler}="noop"