fix linting

prometheuspvesd/config.py

@@ -20,7 +20,7 @@ cache_dir = AppDirs("prometheus-pve-sd").user_cache_dir
 default_output_file = os.path.join(cache_dir, "pve.json")
 
 
-class Config():
+class Config:
     """
     Create an object with all necessary settings.
 

prometheuspvesd/discovery.py

@@ -20,7 +20,7 @@ PROPAGATION_TIME = Summary(
 HOST_GAUGE = Gauge("pve_sd_hosts", "Number of hosts discovered by PVE SD")
 
 
-class Discovery():
+class Discovery:
     """Prometheus PVE Service Discovery."""
 
     def __init__(self):

pyproject.toml

@@ -112,6 +112,7 @@ ignore = [
     "D203",
     "D212",
     "UP038",
+    "RUF012",
 ]
 line-length = 99
 select = [