Update isort version in pre-commit config (#36428)

Previously, a mismatch between the isort versions specified by
pre-commit and by the files used on CI made it impossible to make a
commit which passed both pre-commit and CI lints.

Author: clbarnes

.pre-commit-config.yaml

@@ -25,7 +25,7 @@ repos:
           - file
         args: [--append-config=flake8/cython-template.cfg]
 -   repo: https://github.com/pre-commit/mirrors-isort
-    rev: v4.3.21
+    rev: v5.2.2
     hooks:
     -   id: isort
         language: python_venv