chore(deps): update prom/prometheus docker tag to v3

Author: renovate[bot]

build-images.sh

@@ -12,7 +12,7 @@ reponame="nethsecurity-controller"
 controller_version="2.0.0"
 promtail_image="docker.io/grafana/promtail:2.9.15"
 loki_image="docker.io/grafana/loki:2.9.15"
-prometheus_image="docker.io/prom/prometheus:v2.50.1"
+prometheus_image="docker.io/prom/prometheus:v3.5.0"
 grafana_image="docker.io/grafana/grafana:12.0.2"
 timescale_image="docker.io/timescale/timescaledb:2.21.0-pg16"
 webssh_version=1.6.2