fix: constrain number of workers so we don’t blow up SQLite3

Author: jenstroeger

pyproject.toml

@@ -46,7 +46,7 @@ actions = [
 ]
 dev = [
     "flit >=3.2.0,<4.0.0",
-    "mypy >=1.0.0,!=1.20.2,<2.2",
+    "mypy >=2.0.0,<2.2.0",
     "pip-audit >=2.4.4,<3.0.0",
     "pylint >=3.0.0,<4.1.0",
     "perflint >=0.8.0,<1.0.0",
@@ -147,6 +147,7 @@ filter_files = true
 [tool.mypy]
 # mypy_path =
 # exclude =
+num_workers = 8
 show_error_codes = true
 show_column_numbers = true
 pretty = true