Increase the version of isort

Signed-off-by: Vasilis Themelis <vdthemelis@gmail.com>

Author: vthemelis

.pre-commit-config.yaml

@@ -17,7 +17,7 @@ repos:
       - id: pyupgrade
         args: [ "--py36-plus" ]
   - repo: https://github.com/PyCQA/isort
-    rev: 5.10.1
+    rev: 5.12.0
     hooks:
       - id: isort
   - repo: https://github.com/psf/black