Fix pre-commit

Author: staticdev

.github/workflows/constraints.txt

@@ -1,4 +1,4 @@
 pip==20.2.4
 nox==2020.8.22
 poetry==1.1.2
-virtualenv==20.2.1
+virtualenv==20.2.1

src/toml_validator/__main__.py

@@ -10,12 +10,12 @@
 @click.version_option()
 def main(filename: str) -> None:
     """Makes validations and echos errors if found.
-    
+
     Return status:
     * 0: no errors found
     * 1: incorrect usage
     * 2: invalid path
-    * 3: errors found 
+    * 3: errors found
     """
     validation.validate_extension(filename)
 

tests/test_main.py

@@ -75,7 +75,6 @@ def test_main_with_invalid_path(
         assert result.exit_code == 2
 
 
-
 def test_main_with_errors(
     runner: click.testing.CliRunner,
     mock_validation_validate_extension: Mock,