[DEBUG] Update ERC vanity case in CI subdir template

These modifications to test/infra are not part of this patch set.

This branch exists for ironing out EMBA-specific wrinkles in ERC's
upcoming test suite.  See bug#48598 for the actual code.
1 job for fix/bug-48598 in 6 minutes and 51 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Normal
passed #46768
test-lisp-erc-inotify

00:06:51