Use latest datajoint/nginx image

New image pushed as part of
https://datajoint.atlassian.net/browse/DEV-397?atlOrigin=eyJpIjoiMTRhMDU4YjkyMjljNDg0NjkyMzBlMjQyNGViOWRjMzEiLCJwIjoiamlyYS1zbGFjay1pbnQifQ&focusedCommentId=10885&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-10885

Author: ethho

LNX-docker-compose.yml

@@ -45,7 +45,7 @@ services:
       interval: 15s
   fakeservices.datajoint.io:
     <<: *net
-    image: datajoint/nginx:v0.2.7
+    image: datajoint/nginx:v0.2.8
     environment:
       - ADD_db_TYPE=DATABASE
       - ADD_db_ENDPOINT=db:3306