Upgrade ruff and fix lint errors (#401)

.ruff.toml

@@ -1 +1,10 @@
+[lint]
 ignore = ["E501"]
+select = [
+    "ASYNC210", # Async functions should not call blocking HTTP methods
+    "ASYNC220", # Async functions should not create subprocesses with blocking methods
+    "ASYNC221", # Async functions should not run processes with blocking methods
+    "ASYNC222", # Async functions should not wait on processes with blocking methods
+    "ASYNC230", # Async functions should not open files with blocking methods like open
+    "ASYNC251", # Async functions should not call time.sleep
+]

ical/event.py

@@ -437,7 +437,7 @@ def _validate_duration_unit(cls, values: dict[str, Any]) -> dict[str, Any]:
         if not (duration := values.get("duration")):
             return values
         dtstart = values["dtstart"]
-        if type(dtstart) == datetime.date:  # pylint: disable=unidiomatic-typecheck
+        if type(dtstart) is datetime.date:
             if duration.seconds != 0:
                 raise ValueError("Event with start date expects duration in days only")
         if duration < datetime.timedelta(seconds=0):

requirements_dev.txt

@@ -7,7 +7,7 @@ pip==24.1.2
 pre-commit==3.7.1
 pytest-cov==5.0.0
 pytest==8.2.2
-ruff==0.5.1
+ruff==0.5.4
 
 python-dateutil==2.9.0.post0
 freezegun==1.5.1