gitlab-drupal-ci#16 Set PHP default version to 8.1

run/scripts/start

@@ -3,8 +3,8 @@
 function getConfig() {
   if [[ ! -n ${PHP_VERSION} ]]; then
     while true; do
-      DEFAULT=7.4
-      read -p "Which PHP version is your project using [7.1 - 7.4, 8.0 - 8.1]? " VALUE
+      DEFAULT=8.1
+      read -p "WhIich PHP version is your project using [7.1 - 7.4, 8.0 - 8.1]? " VALUE
       if [[ "x$VALUE" == "x" ]]; then
         PHP_VERSION=$DEFAULT
       else