Use make in the dockerfile, skip the test

.github/workflows/test-suite.yml

@@ -43,10 +43,3 @@ jobs:
     - uses: actions/checkout@v1
     - name: Build the root Dockerfile
       run: docker build .
-  install-ubuntu:
-    runs-on: ubuntu-latest
-    needs: cargo-fmt
-    steps:
-    - uses: actions/checkout@v1
-    - name: Build using the root Makefile
-      run: make

Dockerfile

@@ -1,4 +1,4 @@
 FROM rust:latest
 
 COPY . lighthouse
-RUN cd lighthouse && cargo install --path lighthouse
+RUN cd lighthouse && make