ci: Increase E2E test timeout (#6913)

Author: Luca Forstner

.github/workflows/build.yml

@@ -736,7 +736,7 @@ jobs:
       github.actor != 'dependabot[bot]'
     needs: [job_get_metadata, job_build]
     runs-on: ubuntu-20.04
-    timeout-minutes: 10
+    timeout-minutes: 20
     steps:
       - name: Check out current commit (${{ needs.job_get_metadata.outputs.commit_label }})
         uses: actions/checkout@v3