chore: update deployment workflow to use matrix strategy for OS

Author: alexperez

.github/workflows/deployment.yml

@@ -13,8 +13,13 @@ on:
       - main
 jobs:
   test_linux:
-    name: Ubuntu
-    runs-on: ubuntu-latest
+    name: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-20.04]
+        # os: [ubuntu-18.04, ubuntu-20.04]
+    runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v1