Update tests.yml

.github/workflows/tests.yml

@@ -7,6 +7,8 @@ jobs:
     name: Unit testing
     runs-on: ubuntu-latest
     steps:
+      - name: Install libcrypto
+        run: sudo apt-get update && sudo apt-get install -y libssl1.1
       - uses: actions/checkout@v2
       - name: Use Node.js 16.x
         uses: actions/setup-node@v1