Update isort version in pre-commit (django#371)

Update isort to 5.11.5 due to PyCQA/isort#2083
Note 5.12.0 is out but has already dropped support for python 3.7

Author: LucidDan

.pre-commit-config.yaml

@@ -12,7 +12,7 @@ repos:
         args: ["--target-version=py37"]
 
   - repo: https://github.com/pycqa/isort
-    rev: 5.11.2
+    rev: 5.11.5
     hooks:
       - id: isort
         args: ["--profile=black"]