[ATMOSPHERE-492] chore: Bump neutron to 0.3.47 (#2005)

This is an automated cherry-pick of #1957
/assign ricolin
Depends-On: #2028
diff --git a/charts/neutron/Chart.yaml b/charts/neutron/Chart.yaml
index c30e7af..6ca7ef0 100644
--- a/charts/neutron/Chart.yaml
+++ b/charts/neutron/Chart.yaml
@@ -9,4 +9,4 @@
 sources:
 - https://opendev.org/openstack/neutron
 - https://opendev.org/openstack/openstack-helm
-version: 0.3.42
+version: 0.3.47