Add Parny integration to Prometheus integrations list

[yagmurparny]

Parny

Description:
AI-native on-call management, incident response, uptime monitoring, and real-time infrastructure visibility platform.

Integration type:
Native integration with Prometheus via built-in data source and alert ingestion (Alertmanager compatible).

Documentation:
https://docs.parny.io/integrations/prometheus

Signed-off-by: Yağmur Uzun <[email protected]>