fix(entry-script): use correct php binary for proxy commands

These are the only instances, where the valet cli script is executed with the default
php binary instead of the evaluated binary.

We now use the `$PHP` executable to ensure that the valet cli is always called with the correct binary even when proxying composer / php.

Author: saibotk

valet

@@ -140,9 +140,9 @@ elif [[ "$1" = "php" ]]
 then
     if [[ $2 == *"--site="* ]]; then
         SITE=${2#*=}
-        $(php "$DIR/cli/valet.php" which-php $SITE) "${@:3}"
+        $("$PHP" "$DIR/cli/valet.php" which-php $SITE) "${@:3}"
     else
-        $(php "$DIR/cli/valet.php" which-php) "${@:2}"
+        $("$PHP" "$DIR/cli/valet.php" which-php) "${@:2}"
     fi
 
     exit
@@ -152,9 +152,9 @@ elif [[ "$1" = "composer" ]]
 then
     if [[ $2 == *"--site="* ]]; then
         SITE=${2#*=}
-        $(php "$DIR/cli/valet.php" which-php $SITE) $(which composer) "${@:3}"
+        $("$PHP" "$DIR/cli/valet.php" which-php $SITE) $(which composer) "${@:3}"
     else
-        $(php "$DIR/cli/valet.php" which-php) $(which composer) "${@:2}"
+        $("$PHP" "$DIR/cli/valet.php" which-php) $(which composer) "${@:2}"
     fi
 
     exit