Add Docker-based release tooling for easier releases

Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>

docker-compose.yml

@@ -0,0 +1,11 @@
+version: '3.8'
+
+services:
+  sparkos:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: sparkos:local
+    container_name: sparkos-test
+    # The container will run the test script and exit
+    # Use 'docker-compose up' to test the build