Use dependabot to also update GH Action major versions
Most major version updates of GitHub actions are pretty compatible,
let's use dependabot to get notified about those as well (which we can
then still deny).
@@ -8,7 +8,3 @@ updates:
directory: "/"
schedule:
interval: "weekly"
- ignore:
- # Optional: Official actions have moving tags like v1;
- # if you use those, you don't need updates.
- - dependency-name: "actions/*"
