Use latest bitnami chart repo

Issue: ZENKO-4641

Author: williamlardier

.github/scripts/end2end/install-kind-dependencies.sh

@@ -40,7 +40,7 @@ fi
 
 # Older charts (bitnami/mongodb:7.8) have been removed from bitnami's helm repo: stick to the 
 # commit before removal for now
-helm repo add --force-update bitnami https://raw.githubusercontent.com/bitnami/charts/defb094c658024e4aa8245622dab202874880cbc/bitnami
+helm repo add --force-update bitnami https://charts.bitnami.com/bitnami
 helm repo add --force-update pravega https://charts.pravega.io
 helm repo add --force-update codecentric https://codecentric.github.io/helm-charts/
 # BanzaiCloud repo may not work, c.f. https://scality.atlassian.net/browse/AN-225