If a PR description includes `blocked by <pr>` or `depends on <pr>`,
this check will fail until the referred PRs are either merged or closed.
If this check is made required, it'll also block the merge button.
The details of the supported syntax can be checked at:
https://github.com/marketplace/actions/pr-dependency-check
Signed-off-by: Ernesto Puerta <epuertat@redhat.com>