Update build.yml: install dependencies

.github/workflows/build.yml

@@ -1,4 +1,4 @@
-name: build
+name: Build
 
 on: [push]
 
@@ -12,11 +12,23 @@ jobs:
     # well on Windows or Mac.  You can convert this to a matrix build if you need
     # cross-platform coverage.
     # See: https://docs.github.com/en/actions/configuring-and-managing-workflows/configuring-a-workflow#configuring-a-build-matrix
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
     - uses: actions/checkout@v2
-
+
+    - name: Install Dependencies
+      run: sudo apt install \
+                            libarmadillo-dev \
+                            libeigen3-dev \
+                            libcgal-dev \
+                            libsuitesparse-dev \
+                            libopenblas-dev \
+                            libglew-dev \
+                            libglfw3-dev \
+                            libglm-dev \
+                            cimg-dev
+
     - name: Create Build Environment
       # Some projects don't allow in-source building, so create a separate build directory
       # We'll use this as our working directory for all subsequent commands