Update release.yml

Author: JulianPrieber

.github/workflows/release.yml

@@ -23,6 +23,11 @@ jobs:
 
       - name: Updating Dependencies + zip
         run: |
+          cd ~
+          curl -sS https://getcomposer.org/installer -o /tmp/composer-setup.php
+          HASH=`curl -sS https://composer.github.io/installer.sig`
+          sudo php /tmp/composer-setup.php --install-dir=/usr/local/bin --filename=composer
+
           cd /tmp
           mkdir linkstack
           cd linkstack