chore: stricter mypy checking

unit_test/build_ids_test.py

@@ -11,7 +11,7 @@ def test_compare_configs():
 
     dict_txt = toml.loads(txt)
 
-    new_txt = toml.dumps(dict_txt, encoder=InlineArrayDictEncoder())
+    new_txt = toml.dumps(dict_txt, encoder=InlineArrayDictEncoder())  # type: ignore
     print(new_txt)
 
     assert new_txt == txt
@@ -35,6 +35,6 @@ python_configurations = [
 ]
 """
 
-    output = toml.dumps(example, encoder=InlineArrayDictEncoder())
+    output = toml.dumps(example, encoder=InlineArrayDictEncoder())  # type: ignore
     print(output)
     assert output == result

unit_test/docker_container_test.py

@@ -63,6 +63,7 @@ def test_container_removed():
             stdout=subprocess.PIPE,
             universal_newlines=True,
         ).stdout
+        assert container.name is not None
         assert container.name in docker_containers_listing
         old_container_name = container.name