Added mtools to the apt-get command in CI.

Author: Lethja

.github/workflows/test.yml

@@ -6,10 +6,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - name: Install Lua
+      - name: Install Unit test dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y lua5.4
+          sudo apt-get install -y lua5.4 mtools
 
       - uses: actions/checkout@v4