Merge pull request 'fix: use DEFAULT_BRANCH as source when creating next-release branch' (#12) from fix-workflow-gitea-compat into main

Reviewed-on: https://gitea.unbound.se/unboundsoftware/shared-workflows/pulls/12

.gitea/workflows/Release.yml

@@ -181,7 +181,7 @@ jobs:
               --data "$(jq -n \
                 --arg content "${CHANGELOG_CONTENT}" \
                 --arg message "${TITLE}" \
-                --arg branch "next-release" \
+                --arg branch "${DEFAULT_BRANCH}" \
                 --arg new_branch "next-release" \
                 '{content: $content, message: $message, branch: $branch, new_branch: $new_branch}')" \
               "${API_URL}/contents/CHANGELOG.md"