strip all the header cruft from the release notes

Author: h0tw1r3

.github/workflows/module_release.yml

@@ -77,7 +77,7 @@ jobs:
         run: |
           export GH_HOST=github.com
           gh extension install chelnak/gh-changelog
-          gh changelog get --latest > OUTPUT.md
+          gh changelog get --latest | sed -e "1,/^\[Full Changelog\]/ d" > OUTPUT.md
           echo "::group::release notes"
           cat OUTPUT.md
           echo "::endgroup::"