Fix CI build tools install (build-essential)

Author: Brenlau9

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Install build tools
         run: |
           sudo apt-get update
-          sudo apt-get install -y build essential
+          sudo apt-get install -y build-essential
       
       - name: Make sure test scripts are executable
         run: |