Ender 3 (Pro) Filament Runout Sensor V2

__(Description in german below // Deutschsprachige Beschreibung folgt unten)__

Since I recently mounted a BLTouch on my Ender 3 Pro, I no longer need the mechanical Z-axis end switch. I have now converted it into a filament runout sensor and designed a small housing for it.
This one is a modification of my 1st version (https://www.thingiverse.com/thing:3829371).
I rotated the filament path 90 degrees: The filament no longer runs along the microswitch, but across it. This makes it much easie