ci: fix pr branch name in releases-json workflow

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

.github/workflows/releases-json.yml

@@ -46,7 +46,7 @@ jobs:
         uses: peter-evans/create-pull-request@2b011faafdcbc9ceb11414d64d0573f37c774b04
         with:
           base: master
-          branch: releases-json/${{ github.event.release.name }}
+          branch: bot/releases-json
           commit-message: "github: update .github/releases.json"
           signoff: true
           delete-branch: true