chore: add mypy

pyproject.toml

@@ -26,6 +26,9 @@ testing = [
 ]
 linting = [
     "ruff>=0.1.7",
+    "mypy>=1.7.1",
+    "types-aioboto3-lite[s3]>=12.0.0",
+    "boto3-stubs[s3]>=1.33.10",
 ]
 chalice = [
     "chalice>=1.29.0",
@@ -39,12 +42,13 @@ sls = [
 requires = ["pdm-backend"]
 build-backend = "pdm.backend"
 
-[tool.pdm.dev-dependencies]
-dev = [
-    "types-aioboto3-lite[s3]>=12.0.0",
-    "boto3-stubs[s3]>=1.33.10",
-]
-
 [tool.ruff]
 extend-select = ["W", "C90", "I", "N", "UP", "S", "BLE", "B", "A", "COM", "C4", "DTZ", "T10", "EM", "ISC", "T20", "PT", "RSE", "RET", "SIM", "PTH", "ERA", "PGH", "PL", "TRY", "RUF"]
-extend-ignore = ["S101", "ISC002", "ISC002", "COM812"]
+extend-ignore = ["S101", "ISC001", "ISC002", "COM812"]
+
+[tool.mypy]
+python_version = "3.11"
+warn_return_any = true
+warn_unused_configs = true
+[[tool.mypy.overrides]]
+module = ["aioboto3"]