chore(deps): update prom/prometheus docker tag to v3.7.3 (#115)

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

Author: renovate[bot]

build-images.sh

@@ -12,7 +12,7 @@ reponame="nethsecurity-controller"
 controller_version="2.1.1"
 promtail_image="docker.io/grafana/promtail:3.5.6"
 loki_image="docker.io/grafana/loki:2.9.17"
-prometheus_image="docker.io/prom/prometheus:v3.5.0"
+prometheus_image="docker.io/prom/prometheus:v3.7.3"
 grafana_image="docker.io/grafana/grafana:12.3.0"
 timescale_image="docker.io/timescale/timescaledb:2.23.1-pg16"
 webssh_version=1.6.2