chore(deps): update reviewdog/action-flake8 action to v3.8.0 (#265)

| datasource  | package                 | from   | to     |
| ----------- | ----------------------- | ------ | ------ |
| github-tags | reviewdog/action-flake8 | v3.6.0 | v3.8.0 |

Author: stackable-bot

.github/workflows/pr_reviewdog.yml

@@ -38,7 +38,7 @@ jobs:
       - uses: actions/setup-python@b64ffcaf5b410884ad320a9cfac8866006a109aa # v4.8.0
         with:
           python-version: "3.11"
-      - uses: reviewdog/action-flake8@b6435e67f0cfda225b9e0c9283cfb7ea7c551bdb # tag=v3.6.0
+      - uses: reviewdog/action-flake8@51c2708ac3e9463b4d27d0ba7d9e3ded608a6ad3 # v3.8.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}