pylint: enable various optional checks/extensions

https://github.com/fphammerle/ical2vdir/commit/3ddcbbd3e757644be6e32cf1c6135c82c845b4ab
https://github.com/fphammerle/ical2vdir/commit/4dcddd2d1b1b2808acf1d58c6475a64b297a00eb

.pylintrc

@@ -1,3 +1,23 @@
+[MASTER]
+
+load-plugins=pylint.extensions.check_elif,
+             pylint.extensions.comparison_placement,
+             pylint.extensions.confusing_elif,
+             pylint.extensions.consider_ternary_expression,
+             pylint.extensions.emptystring,
+             pylint.extensions.eq_without_hash,
+             pylint.extensions.for_any_all,
+             pylint.extensions.mccabe,
+             pylint.extensions.no_self_use,
+             pylint.extensions.overlapping_exceptions,
+             pylint.extensions.private_import,
+             pylint.extensions.redefined_loop_name,
+             pylint.extensions.redefined_variable_type,
+             pylint.extensions.set_membership,
+             pylint.extensions.typing
+
 [MESSAGES CONTROL]
 
-disable=missing-docstring
+disable=consider-alternative-union-syntax, # requires python>=3.10
+        deprecated-typing-alias, # requires python>=3.9, e.g. for dict[...]
+        missing-docstring

tests/test_cleanup.py

@@ -4,7 +4,7 @@ import os
 import pathlib
 import unittest.mock
 
-import _pytest.logging
+import _pytest.logging  # pylint: disable=import-private-name; typing
 import free_disk
 
 # pylint: disable=protected-access