changelog only triggered when release

Signed-off-by: Michée Lengronne <michee.lengronne@coppint.com>

Author: micheelengronne

.github/workflows/changelog.yml

@@ -1,15 +1,9 @@
 name: Create Changelog
 
 on:
-  pull_request:
-    types: [closed]
-
   release:
     types: [published]
 
-  issues:
-    types: [closed, edited]
-
 jobs:
   generate_changelog:
     runs-on: ubuntu-latest