Try to speed up project-reset E2E test

It's taking 30-60 seconds for finishProjectReset to complete now, and
I'm starting to suspect that we might not be clearing the NFS directory
cache that actually needs clearing. So I'm doing an `ls` on the `.hg`
folder to see if that makes a difference.

hgweb/command-runner.sh

@@ -36,7 +36,7 @@ echo ""
 # Run the hg command, simply output to stdout
 first_char=$(echo $project_code | cut -c1)
 # Ensure NFS cache is refreshed in case project repo changed in another pod (e.g., project reset)
-ls /var/hg/repos/$first_char/$project_code >/dev/null 2>/dev/null  # Don't need output; this is enough to refresh NFS dir cache
+ls /var/hg/repos/$first_char/$project_code/.hg >/dev/null 2>/dev/null  # Don't need output; this is enough to refresh NFS dir cache
 # Sometimes invalidatedircache is called after deleting a project, so the cd would fail. So exit fast in that case.
 [ "x$command_name" = "xinvalidatedircache" ] && exit 0
 cd /var/hg/repos/$first_char/$project_code