Checkout V4

[RoKrish14]

- uses: actions/checkout@v4

• This is an action that checks out your repository onto the runner, allowing you to run scripts or other actions against your code (such as build and test tools).

• Upgrading to version 4 ensures that your workflows remain efficient and take advantage of the latest improvements.

• Note: Artifacts v4 is not cross-compatible with previous versions. For example, an artifact uploaded using v3 cannot be used with actions/download-artifact@v4

[scherersebastian]

just go for it.
annouce the change in the devsecops hour and create PRs where needed.