Config release-drafter in 3.x

Author: slawekjaranowski

.github/release-drafter.yml

@@ -1,2 +1,5 @@
 _extends: .github
-tag-template: plexus-utils-$NEXT_MINOR_VERSION
+tag-template: plexus-xml-$NEXT_PATCH_VERSION
+version-template: 3.$MINOR.$PATCH
+commitish: 3.x
+filter-by-commitish: true

.github/workflows/release-drafter.yml

@@ -1,8 +1,8 @@
-name: Release Drafter
+name: Release Drafter 3.x
 on:
   push:
     branches:
-      - master
+      - 3.x
 jobs:
   update_release_draft:
     runs-on: ubuntu-latest