update env vars

Author: andreiio

apps/euroquiz/service.yaml

@@ -71,7 +71,7 @@ spec:
                 secretKeyRef:
                   name: euroquiz-secret
                   key: MAIL_FROM_ADDRESS
-            - name: CONTEST_START_DATE
+            - name: ONLINE_MEETING_START_DATE
               value: "2024-04-08"
-            - name: CONTEST_END_DATE
+            - name: ONLINE_MEETING_END_DATE
               value: "2024-04-22"