Grafana and friends

Updated:

• app-metrics/prom2json-1.3.3
• app-metrics/synthetic-monitoring-agent-0.17.1
• app-metrics/telegraf-1.28.0
• app-admin/loki-2.9.1
• app-metrics/snmp_exporter-0.24.1
• net-misc/rustdesk-bin-1.2.2
• app-metrics/prometheus-2.47.0
• www-apps/grafana-10.1.1