.github/workflows/ci.yml: run e2e daily

The e2e tests are not flaky anymore, so we should run them daily to see
if they break for whatever reason. This way we notice before someone
makes a "goog" PR.

Signed-off-by: leonnicolas <leonloechner@gmx.de>

.github/workflows/ci.yml

@@ -96,7 +96,6 @@ jobs:
       run: make unit
 
   e2e:
-    if: github.event_name == 'pull_request'
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2