Upgrade prometheus-node-exporter (v1.7.0-2 -> v1.7.0-3)

The new version drops support for the legacy basic auth method
(`prometheus_node_exporter_basicauth_*` variables).

requirements.yml

@@ -49,7 +49,7 @@
   version: v2.49.1-0
   name: prometheus
 - src: git+https://github.com/mother-of-all-self-hosting/ansible-role-prometheus-node-exporter.git
-  version: v1.7.0-2
+  version: v1.7.0-3
   name: prometheus_node_exporter
 - src: git+https://github.com/mother-of-all-self-hosting/ansible-role-prometheus-postgres-exporter.git
   version: v0.14.0-3