chore(deps): update grafana/promtail docker tag to v3.6.1 (#133)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

build-images.sh

@@ -10,7 +10,7 @@ repobase="${REPOBASE:-ghcr.io/nethserver}"
 # Configure the image name
 reponame="nethsecurity-controller"
 controller_version="2.1.1"
-promtail_image="docker.io/grafana/promtail:3.5.6"
+promtail_image="docker.io/grafana/promtail:3.6.1"
 loki_image="docker.io/grafana/loki:2.9.17"
 prometheus_image="docker.io/prom/prometheus:v3.7.3"
 grafana_image="docker.io/grafana/grafana:12.3.0"