Use less ambiguous names for the services

Author: mhucka

docker-compose.yml

@@ -1,21 +1,23 @@
 services:
     qsim-base-image:
-        platform: linux/amd64
         image: qsim-base
+        platform: linux/amd64
         build:
             context: ./
             dockerfile: Dockerfile
             target: qsim-base
 
-    qsim-cxx-tests:
+    qsim-cxx-tests-image:
+        image: qsim-cxx-tests
         build:
             context: ./
             dockerfile: tests/Dockerfile
             target: qsim-cxx-tests
         depends_on:
           - qsim-base-image
 
-    qsim-py-tests:
+    qsim-py-tests-image:
+        image: qsim-py-tests
         build:
             context: ./
             dockerfile: pybind_interface/Dockerfile