Update ci.yml

Author: adamrtalbot

.github/workflows/ci.yml

@@ -1,12 +1,7 @@
 name: nf-core CI
 # This workflow runs the pipeline with the minimal test dataset to check that it completes without any syntax errors
 on:
-  push:
-    branches:
-      - dev
   pull_request:
-  release:
-    types: [published]
 
 env:
   NXF_ANSI_LOG: false