chore: Update action setup to v5 (#1700)

---------

Co-authored-by: M. Emin Cihangeri <m.emin.cihanger@sap.com>
Co-authored-by: David Knaack <david.knaack@sap.com>

Author: 3 people

.github/actions/setup/action.yml

@@ -27,7 +27,7 @@ runs:
       with:
         ref: ${{ inputs.ref }}
         token: ${{ inputs.token }}
-    - uses: pnpm/action-setup@v4
+    - uses: pnpm/action-setup@v5
       with:
         version: ${{ inputs.pnpm-version }}
     - uses: actions/setup-node@v6

.github/workflows/e2e-tests.yaml

@@ -46,7 +46,7 @@ jobs:
       - name: 'Execute E2E Tests'
         run: pnpm test:e2e
       - name: 'Slack Notification'
-        if: failure()
+        if: failure() && github.event_name == 'schedule'
         uses: slackapi/slack-github-action@v3.0.1
         with:
           webhook: ${{ secrets.SLACK_WEBHOOK }}