general: use typing annotations for icalendar and workalendart

src/my/calendar/holidays.py

@@ -15,7 +15,7 @@
 
 @lru_cache(1)
 def _calendar():
-    from workalendar.registry import registry  # type: ignore[import-not-found]
+    from workalendar.registry import registry
 
     # todo switch to using time.tz.main once _get_tz stabilizes?
     from ..time.tz import via_location as LTZ

src/my/rtm.py

@@ -12,9 +12,8 @@
 from datetime import datetime
 from functools import cached_property
 
-# no mypy annotations... https://github.com/collective/icalendar/issues/395
-import icalendar  # type: ignore[import-not-found]
-from icalendar.cal import Todo  # type: ignore[import-not-found]
+import icalendar
+from icalendar.cal import Todo
 from more_itertools import bucket
 
 from my.core import get_files, make_logger
@@ -90,7 +89,7 @@ def __init__(self, data: str, revision=None) -> None:
 
     def all_todos(self) -> Iterator[MyTodo]:
         for t in self.cal.walk('VTODO'):
-            yield MyTodo(t, self.revision)
+            yield MyTodo(t, self.revision)  # type: ignore[arg-type]
 
     def get_todos_by_uid(self) -> dict[str, MyTodo]:
         todos = self.all_todos()

tox.ini

@@ -116,10 +116,12 @@ commands =
 dependency_groups = testing
 deps =
     -e .[optional]
-    uv              # for hpi module install
-    lxml-stubs      # for my.smscalls
-    types-protobuf  # for my.google.maps.android
-    types-Pillow    # for my.photos
+    uv                 # for hpi module install
+    lxml-stubs         # for my.smscalls
+    types-protobuf     # for my.google.maps.android
+    types-Pillow       # for my.photos
+    types-icalendar    # for my.rtm
+    types-workalendar  # for my.calendar.holidays
 commands =
     {envpython} -m my.core module install \
         my.arbtt                  \