refactor: using release branch (#628)

Author: mfranzke

.github/scripts/get-release.sh

@@ -4,7 +4,7 @@ if [[ $GITHUB_REF == refs/tags/v*  ]]
 then
 	if [[ $GITHUB_ACTOR != 'dependabot[bot]' ]]
 	then
-		if [[ $GITHUB_COMMITISH == 'main' && $GITHUB_PRE_RELEASE == false ]]
+		if [[ ( $GITHUB_COMMITISH == 'main' || $GITHUB_COMMITISH == 'release-branch') && $GITHUB_PRE_RELEASE == false ]]
 		then
 		  echo "RELEASE"
 		else