[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/kynan/nbstripout: 0.8.0 → 0.8.1](kynan/nbstripout@0.8.0...0.8.1)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -21,6 +21,6 @@ repos:
       - id: isort
         args: ["--profile", "black"]
   - repo: https://github.com/kynan/nbstripout
-    rev: 0.8.0
+    rev: 0.8.1
     hooks:
       - id: nbstripout