Wait up to 30 mins for LE cert

Sometime fetching LE certs take up to 23mins,
see https://code.greenhost.net/openappstack/bootstrap/issues/90#note_48508

.gitlab-ci.yml

@@ -87,7 +87,7 @@ behave:
     - ls -al test/behave
     - grep -v 'keycloak.admin.password' test/behave/behave.ini
     # Wait for proper LE cert to get served
-    - timeout -t 1200 sh -c 'while ! curl --cacert ./test/letsencrypt_staging_bundle.pem -s https://auth.ci-${CI_PIPELINE_ID}.ci.openappstack.net/auth/ > /dev/null; do date; echo "Waiting for LE cert..."; sleep 5; done'
+    - timeout -t 1800 sh -c 'while ! curl --cacert ./test/letsencrypt_staging_bundle.pem -s https://auth.ci-${CI_PIPELINE_ID}.ci.openappstack.net/auth/ > /dev/null; do date; echo "Waiting for LE cert..."; sleep 5; done'
     - cd test/behave/
     - behave -D headless=True --stop
   cache: