Correct memcache service name in Acquia recipe (#3) (#25)

Co-authored-by: Christopher Charbonneau Wells <10456740+cdubz@users.noreply.github.com>

recipes/acquia/acquia-settings.inc

@@ -11,6 +11,6 @@ $databases['default']['default'] = [
 ];
 
 $settings['hash_salt'] = md5(getenv('LANDO_HOST_IP'));
-$settings['memcache']['servers'] = ['memcached:11211' => 'default'];
+$settings['memcache']['servers'] = ['cache:11211' => 'default'];
 $settings['memcache']['bins'] = ['default' => 'default'];
 $settings['memcache']['key_prefix'] = '';