PyLint fix

Makefile

@@ -1,6 +1,6 @@
 lint:
-	pylint -j 6 --rcfile=./.pylintrc ./platformio
 	pylint -j 6 --rcfile=./.pylintrc ./tests
+	pylint -j 6 --rcfile=./.pylintrc ./platformio
 
 isort:
 	isort ./platformio

tests/conftest.py

@@ -42,6 +42,7 @@ def clirunner(request):
         "PLATFORMIO_WORKSPACE_DIR": {"new": None},
     }
     for key, item in backup_env_vars.items():
+        # pylint: disable=unnecessary-dict-index-lookup
         backup_env_vars[key]["old"] = os.environ.get(key)
         if item["new"] is not None:
             os.environ[key] = item["new"]