Update build-and-test-ubuntu.yml

Perhaps a good idea to look at the output from ChatGPT before committing it 🤦‍♂️ .

.github/workflows/build-and-test-ubuntu.yml

@@ -117,21 +117,15 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      # Step 1: Checkout the 8Beat repository
+      # Checkout the 8Beat repository
       - name: Checkout 8Beat repository
         uses: actions/checkout@v3
-
-      # Step 2: Move to the parent directory and fetch dependencies (if needed)
-      - name: Fetch dependencies
-        run: |
-          cd ..
-          git clone https://github.com/razterizer/8Beat.git
-      
-      # Step 3: Install cppcheck
+
+      # Install cppcheck
       - name: Install cppcheck
         run: sudo apt-get install cppcheck
 
-      # Step 4: Run cppcheck on 8Beat headers
+      # Run cppcheck on 8Beat headers
       - name: Run cppcheck
         run: |
           cppcheck --enable=all --inconclusive --error-exitcode=1 8Beat/include