Update toolkit components

- helm-controller to v0.17.2
  https://github.com/fluxcd/helm-controller/blob/v0.17.2/CHANGELOG.md
- notification-controller to v0.22.3
  https://github.com/fluxcd/notification-controller/blob/v0.22.3/CHANGELOG.md

Signed-off-by: GitHub <noreply@github.com>

Update toolkit components

- image-automation-controller to v0.20.1
  https://github.com/fluxcd/image-automation-controller/blob/v0.20.1/CHANGELOG.md

Signed-off-by: GitHub <noreply@github.com>