⬆️ update asio dependency
⬆️ update asio dependency

Change-Id: I25d2975192962d49a86ceec5ef38f8ad945cea26
Reviewed-on: http://review.couchbase.org/c/couchbase-ruby-client/+/136309
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Sergey Avseyev <87f6d5e4fd3644c3c20800cde7fd3ad1569370b3@gmail.com>

couchbase/couchbase-ruby-client,couchbase/couchbase-ruby-client,couchbase/couchbase-ruby-client