build: make cron job more robust

.gitlab-ci.yml

@@ -66,7 +66,7 @@ update:
     - renku dataset update covid-19-italy
     - renku dataset update covid-19-spain
     - renku dataset update covid-19-us-nyt
-    - renku dataset add covid-19-ecdc -d covid-19-ecdc.csv https://opendata.ecdc.europa.eu/covid19/casedistribution/csv --force
+    - renku dataset add covid-19-ecdc -d covid-19-ecdc.csv https://opendata.ecdc.europa.eu/covid19/casedistribution/csv --force || true
     - renku dataset add covid-19-chile -s data/*.csv  -s data/covid19_chile.rds https://github.com/itoledor/coronavirus.git --force
     - renku dataset add covidtracker https://ocgptweb.azurewebsites.net/CSVDownload -d covidtracker.csv --force
     - renku rerun data/covidtracking/states-metadata.json data/covidtracking/states-daily.json