Update elastic/oblt-actions digest to 516cabf (#48)

Co-authored-by: elastic-renovate-prod[bot] <174716857+elastic-renovate-prod[bot]@users.noreply.github.com>

Author: elastic-renovate-prod[bot]

.github/workflows/ci.yml

@@ -46,7 +46,7 @@ jobs:
       - checks
     steps:
       - id: check
-        uses: elastic/oblt-actions/check-dependent-jobs@c3ce70a07219839045daa4d3a4c9bae706267203 # v1
+        uses: elastic/oblt-actions/check-dependent-jobs@516cabfed474ba2d4a979e75bc6e308903c40ac9 # v1
         with:
           jobs: ${{ toJSON(needs) }}
       - run: ${{ steps.check.outputs.is-success }}