[REF] monitoring_prometheus: server_environment should not be a required dependency

monitoring_prometheus/models/ir_http.py

@@ -17,6 +17,8 @@ class IrHttp(models.AbstractModel):
 
     @classmethod
     def _dispatch(cls, endpoint):
+        # httprequest environment is updated with WSGI environment variables in core
+        # REF: https://github.com/odoo/odoo/blob/18.0/odoo/http.py#L1992
         path_info = request.httprequest.environ.get("PATH_INFO")
 
         if path_info.startswith("/longpolling/"):