Renovate: nginx Docker digest to fb19759 (#150)

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

roles/monitoring_server/tasks/install_nginx_container.yml

@@ -72,7 +72,7 @@
   community.docker.docker_container:
     name: nginx
     hostname: nginx
-    image: nginx@sha256:28402db69fec7c17e179ea87882667f1e054391138f77ffaf0c3eb388efc3ffb
+    image: nginx@sha256:fb197595ebe76b9c0c14ab68159fd3c08bd067ec62300583543f0ebda353b5be
     state: started
     networks:
       - name: monitor-net