Update elastic/oblt-actions digest to 87e7632

Author: elastic-renovate-prod[bot]

.github/workflows/github-commands-comment.yml

@@ -15,4 +15,4 @@ jobs:
     permissions:
       pull-requests: write
     steps:
-      - uses: elastic/oblt-actions/elastic/github-commands@605dfce047ddfa05cbb32ebb3700d0d3b8a61738 # v1
+      - uses: elastic/oblt-actions/elastic/github-commands@87e7632492c0facca73eeba1b9e5b3f5b1e51baf # v1