Enable collection integration tests on GHA

There are a number of changes here:

- Abstract out a GHA composite action for running the dev environment
- Update the e2e tests to use that new abstracted action
- Introduce a new (matrixed) job for running collection integration
  tests. This splits the jobs up based on filename.
- Collect coverage info and generate an html report that people can
  download easily to see collection coverage info.
- Do some hacks to delete the intermediary coverage file artifacts
  which aren't needed after the job finishes.

Signed-off-by: Rick Elrod <rick@elrod.me>

awx_collection/tests/integration/targets/project_update/tasks/main.yml

@@ -61,6 +61,10 @@
     organization: Default
     state: absent
   register: result
+  until: result is changed  # wait for the project update to settle
+  retries: 6
+  delay: 5
+
 
 - assert:
     that: