(via SylvainJuge): Fix checkout ref to use workflow_run.head_sha instead of undefined input#1038

SylvainJuge merged 4 commits intochangelog-upstream-updateselastic/elastic-otel-java:changelog-upstream-updatesfrom

macroscope/changelog-upstream-updateselastic/elastic-otel-java:macroscope/changelog-upstream-updatesCopy head branch name to clipboard