ci: use original commiter author instead of actor (#310)

* ci: use original commiter author instead of actor

* Update sync-to-mirrors.sh

* Update sync-to-mirrors.sh

* Update sync-to-mirrors.sh

.github/sync-to-mirrors.sh

@@ -40,7 +40,8 @@ if [[ -z "$COMMIT_MESSAGE" ]]; then
 	MONOREPO_COMMIT_MESSAGE=$(cd "${SOURCE_DIR:-.}" && git show -s --format=%B $GITHUB_SHA)
 	COMMIT_MESSAGE=$( printf "%s\n\nCommitted via a GitHub action: https://github.com/%s/actions/runs/%s\n" "$MONOREPO_COMMIT_MESSAGE" "$GITHUB_REPOSITORY" "$GITHUB_RUN_ID" )
 fi
-COMMIT_ORIGINAL_AUTHOR="${GITHUB_ACTOR} <${GITHUB_ACTOR}@users.noreply.github.com>"
+COMMIT_ACTOR="${GITHUB_ACTOR} <${GITHUB_ACTOR}@users.noreply.github.com>"
+COMMIT_AUTHOR=$(cd "${SOURCE_DIR:-.}" &&git show -s --format="%an <%ae>" $GITHUB_SHA)
 
 if [[ "$GITHUB_REF" =~ ^refs/heads/ ]]; then
 	BRANCH=${GITHUB_REF#refs/heads/}
@@ -98,7 +99,7 @@ while read -r PLUGIN_NAME; do
 
 	if [[ -n "$FORCE_COMMIT" || -n "$(git status --porcelain)" ]]; then
 		echo "Committing to $PLUGIN_NAME"
-		if git commit $FORCE_COMMIT --author="${COMMIT_ORIGINAL_AUTHOR}" -m "${COMMIT_MESSAGE}" &&
+		if git commit $FORCE_COMMIT --author="${COMMIT_AUTHOR}" -m "${COMMIT_MESSAGE}\nCo-authored-by: ${COMMIT_ACTOR}" &&
 			{ [[ -z "$CI" ]] || git push origin "$BRANCH"; } # Only do the actual push from the GitHub Action
 		then
 			# echo "$BUILD_BASE/changes.diff"
@@ -114,4 +115,4 @@ while read -r PLUGIN_NAME; do
 	fi
 done < "$BUILD_BASE/mirrors.txt"
 
-exit $EXIT
+exit $EXIT