fixup! Build Rufus compatible ISO

Author: JohnAZoidberg

.github/workflows/ci.yml

@@ -74,8 +74,8 @@ jobs:
         name: framework.efi
         path: framework_uefi/build/x86_64-unknown-uefi/boot.efi
 
-    - name: Install mtools to build ESP (Linux)
-      run: sudo apt-get install -y mtools
+    - name: Install mtools to build ESP and ISO (Linux)
+      run: sudo apt-get install -y mtools genisoimage
 
     - name: Build ESP (Linux)
       run: make -C framework_uefi