[PATCH] ci: update versions of actions in GHA

[Thomas Monjalon]

11/05/2026 18:11, David Marchand:
> GitHub started deprecating GHA actions based on Node 20.
> For now, only warnings are raised, but we can switch to more recent
> versions of the common actions, now:
> - cache v5
> - checkout v6
> - upload-artifact v7
> - setup-python v6
> 
> Link: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
> 
> Cc: stable at dpdk.org
> 
> Signed-off-by: David Marchand <david.marchand at redhat.com>

Applied, thanks.