add default-member again

Author: erhant

Cargo.lock

@@ -2,6 +2,11 @@
 resolver = "2"
 members = ["compute", "p2p", "workflows", "utils", "monitor"]
 
+# FIXME: removing this breaks the workflows
+# compute node is the default member, until Oracle comes in
+# then, a Launcher will be the default member
+default-members = ["compute"]
+
 [workspace.package]
 edition = "2021"
 version = "0.2.28"