falso.service: set `StandardOutput` to null
falso.service: set `StandardOutput` to null

Signed-off-by: Domenico Chirabino <078350176803513034dec58ecefd2b1451fd2866@protonmail.com>
draios/falco,draios/falco,draios/falco,draios/falco,draios/falco,draios/falco,draios/falco,draios/falco