Try to fix linebreak issue in github release message

Author: chrisj951

.github/workflows/create-nightly.yml

@@ -75,7 +75,13 @@ jobs:
           # Create new release
           gh release create "$TAG_NAME" "$FILE_NAME" \
             --title "Nightly Build $TAG_NAME" \
-            --notes "Automated nightly build from commit ${{ steps.get_sha.outputs.short_sha }}.\n\nChanges since last release:\n$COMMIT_LOG" \
+            --notes-from-file <(cat <<EOF
+Automated nightly build from commit ${{ steps.get_sha.outputs.short_sha }}.
+
+Changes since last release:
+$COMMIT_LOG
+EOF
+) \
             --prerelease