examples: Unbreak python example

The method is `trigger_feedback` not `trigger`.
8 jobs for master in 8 minutes and 34 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #360003
librem5
build:native-debian-bullseye

00:01:14

passed #360001
librem5
build:native-debian-buster:full

00:01:14

passed #360002
librem5
build:native-debian-buster:lib

00:01:09

 
  Test
passed #360004
librem5
test:native-debian-bullseye

00:00:48

62.6%
 
  Package
passed #360005
librem5
package:deb-debian-buster

00:01:21

passed #360006
librem5:arm64
package:deb-debian-buster:arm64

00:05:11

 
  Test Package
passed #360007
librem5
autopkgtest-debian-buster-package

00:01:18

passed #360008
librem5
lintian-debian-buster-package

00:01:13