Get rolling releases CI green (#2916)

The default value for this flag changed, but we require it.
diff --git a/.bazelrc b/.bazelrc
index 2b404c6..09a2cce 100644
--- a/.bazelrc
+++ b/.bazelrc
@@ -66,7 +66,7 @@
 
 # TODO: migrate all dependencies from WORKSPACE to MODULE.bazel
 # https://github.com/bazelbuild/rules_rust/issues/2181
-common --noenable_bzlmod
+common --noenable_bzlmod --enable_workspace
 
 # Disable the bzlmod lockfile, so we don't accidentally commit MODULE.bazel.lock
 common --lockfile_mode=off