chore(deps): update dpage/pgadmin4 docker tag to v9.1

Author: renovate[bot]

build-images.sh

@@ -45,7 +45,7 @@ buildah config --entrypoint=/ \
     --label="org.nethserver.authorizations=traefik@node:routeadm" \
     --label="org.nethserver.tcp-ports-demand=2" \
     --label="org.nethserver.rootfull=0" \
-    --label="org.nethserver.images=docker.io/dpage/pgadmin4:9.0 docker.io/postgres:14.13-bookworm" \
+    --label="org.nethserver.images=docker.io/dpage/pgadmin4:9.1 docker.io/postgres:14.13-bookworm" \
     "${container}"
 # Commit the image
 buildah commit "${container}" "${repobase}/${reponame}"