chore(deps): update prometheus-blackbox-exporter docker tag to v11.4.2

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

Author: renovate[bot]

gitops/argocd/charts/monitoring/blackbox-exporter/Chart.yaml

@@ -10,4 +10,4 @@ appVersion: 1.0.0
 dependencies:
 - name: prometheus-blackbox-exporter
   repository: oci://ghcr.io/prometheus-community/charts
-  version: 11.4.1
+  version: 11.4.2