Fix lints

Author: rascani

backends/cortex_m/test/misc/test_compile_config.py

@@ -79,9 +79,7 @@ def test_explicit_isa_override(self):
         assert config.isa == "scalar"
 
 
-@pytest.mark.skipif(
-    not _HAS_CMSIS_NN, reason="cortex_m passes require cmsis_nn"
-)
+@pytest.mark.skipif(not _HAS_CMSIS_NN, reason="cortex_m passes require cmsis_nn")
 class TestPassManagerConfigWiring:
     def test_default_config_is_m55(self):
         from executorch.backends.cortex_m.passes.cortex_m_pass_manager import (

backends/cortex_m/test/tester.py

@@ -56,7 +56,7 @@ def __init__(self, config: Optional[CortexMCompileConfig] = None):
         # Pre-bind the config so it flows through that 2-arg call.
         super().__init__(
             partial(CortexMPassManager, config=config),  # type: ignore[arg-type]
-            CortexMPassManager.pass_list,
+            CortexMPassManager.pass_list,  # type: ignore[arg-type]
         )
 
 
@@ -89,7 +89,9 @@ def __init__(
         else:
             resolved_example_inputs = example_inputs
         config = config or CortexMCompileConfig()
-        stage_classes = dict(cortex_m_stage_classes)
+        stage_classes: dict[StageType, Callable[..., Any]] = dict(
+            cortex_m_stage_classes
+        )
         stage_classes[StageType.RUN_PASSES] = lambda: CortexMRunPasses(config=config)
         super().__init__(module, resolved_example_inputs, stage_classes)