Update Github Actions.

Author: tatsy

.github/workflows/cmake.yml

@@ -20,10 +20,11 @@ jobs:
     - 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
-      run: sudo apt-get update -y
-      run: sudo apt-get upgrade -y
-      run: sudo apt-get install libeigen3-dev
-      run: cmake -E make_directory ${{runner.workspace}}/build
+      run:
+        - sudo apt-get update -y
+        - sudo apt-get upgrade -y
+        - sudo apt-get install libeigen3-dev
+        - cmake -E make_directory ${{runner.workspace}}/build
 
     - name: Configure CMake
       # Use a bash shell so we can use the same syntax for environment variable