Merge pull request pytest-dev#13939 from nicoddemus/pre-commit-system-deprecated

pre-commit: `language: system` is deprecated in favor of `language: unsupported`

Author: webknjaz

.pre-commit-config.yaml

@@ -86,7 +86,7 @@ repos:
     -   id: pylint
         name: pylint
         entry: pylint
-        language: system
+        language: unsupported
         types: [python]
         args: ["-rn", "-sn", "--fail-on=I", "--enable-all-extentions"]
         require_serial: true