Fix the following go vet error:
# git.sr.ht/~rjarry/aerc/worker/notmuch
worker/notmuch/worker.go:86:19:
git.sr.ht/~rjarry/aerc/worker/types.Done composite literal uses unkeyed
fields
Signed-off-by: Moritz Poldrack <git@moritz.sh>
Acked-by: Robin Jarry <robin@jarry.cc>
Acked-by: Tim Culverhouse <tim@timculverhouse.com>