Reverted to previous state

.github/workflows/vulcanos.yml

@@ -0,0 +1,18 @@
+name: vulcanos
+on:
+  push:
+    branches: [master]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: checkout repo
+      uses: actions/checkout@main
+    - name: Build vulcanos
+      run: |
+        sudo apt update && sudo apt install -y nasm grub-pc-bin mtools xorriso
+        sudo ln -s /usr/bin/gcc /usr/bin/i686-elf-gcc
+        sudo ln -s /usr/bin/ld /usr/bin/i686-elf-ld
+        make clean all