Fixed release-drafter (#25)

Author: ssbarnea

.github/workflows/release-drafter.yml

@@ -1,14 +1,18 @@
-name: Release Drafter
+name: release-drafter
 
 on:
   push:
     # branches to consider in the event; optional, defaults to all
     branches:
       - $default-branch
+      - main
+      - master
+      - 'releases/**'
+      - 'stable/**'
 
 jobs:
   update_release_draft:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       # Drafts your next Release notes as Pull Requests are merged into "master"
       - uses: release-drafter/release-drafter@v5