Update OctoPrint percentage with M73 P

[sid-logic]

It would be great if this plugin would also override the percentage in OctoPrint with the value set with the M73 P variant (see https://marlinfw.org/docs/gcode/M073.html).

[foorschtbar]

Currently not possible, the hook missing the option to set to progress: OctoPrint/OctoPrint#4663