Release trigger: remove server-id

Author: stefan-ka

.github/workflows/release-trigger.yml

@@ -16,7 +16,6 @@ jobs:
       uses: actions/setup-java@v1
       with:
         java-version: 11
-        server-id: github
     - name: Configure Git user
       run: |
         git config user.email "contextmapper-ci@kapferer.ch"