Fix pre-commit conflicting on test imports

.pre-commit-config.yaml

@@ -25,4 +25,7 @@ repos:
     rev: master
     hooks:
       - id: reorder-python-imports
+        args:
+          - --application-directories=keyosk
         language: system
+        exclude: "tests/"

tests/test_metadata.py

@@ -6,7 +6,6 @@ sources of truth agree with each other.
 from pathlib import Path
 
 import toml
-
 from keyosk import __about__