Merge pull request #1481 from apache/juerg/ci

.github/compose/ci.bst-artifact-server.yml: Update image
diff --git a/.github/compose/ci.bst-artifact-server.yml b/.github/compose/ci.bst-artifact-server.yml
index 879e5ca..fbed777 100644
--- a/.github/compose/ci.bst-artifact-server.yml
+++ b/.github/compose/ci.bst-artifact-server.yml
@@ -18,9 +18,8 @@
 
 services:
   controller:
-    image: buildstream/buildstream:dev
+    image: buildstream/buildstream:nightly
     command: ["bst-artifact-server",
-      "--log-level", "warning",
       "--port", "50052",
       "--enable-push",
       "/artifacts"