Speed up CI, add more checks (#115)

- Split pytest and end-to-end tests into separate jobs
- Add poetry check to ensure pyproject.toml and poetry.lock are in sync
- Add ruff format --diff to ensure style formatting is applied (fails if ruff would reformat anything)

.github/workflows/build-docker-images.yml

@@ -14,7 +14,7 @@ env:
 
 jobs:
   latest-cpu:
-    name: "Build CPU"
+    name: CPU
     runs-on: ubuntu-latest
     steps:
       - name: Cleanup disk
@@ -109,7 +109,7 @@ jobs:
     #       SLACK_BOT_TOKEN: ${{ secrets.SLACK_CIFEEDBACK_BOT_TOKEN }}
 
   latest-cuda:
-    name: "Build GPU"
+    name: GPU
     runs-on: ubuntu-latest
     steps:
       - name: Cleanup disk