Test premerge (#5514)

simpler integration tests

### Types of changes
<!--- Put an `x` in all the boxes that apply, and remove the not
applicable items -->
- [x] Non-breaking change (fix or new feature that would not break
existing functionality).
- [ ] Breaking change (fix or new feature that would cause existing
functionality to change).
- [ ] New tests added to cover the changes.
- [ ] Integration tests passed locally by running `./runtests.sh -f -u
--net --coverage`.
- [ ] Quick tests passed locally by running `./runtests.sh --quick
--unittests --disttests`.
- [ ] In-line docstrings updated.
- [ ] Documentation updated, tested `make html` command in the `docs/`
folder.

Signed-off-by: Wenqi Li <wenqil@nvidia.com>
Co-authored-by: Wenqi Li <wenqil@nvidia.com>

Author: YanxuanLiu

.github/workflows/setupapp.yml

@@ -23,7 +23,7 @@ jobs:
   coverage-py3:
     if: github.repository == 'Project-MONAI/MONAI'
     container:
-      image: nvcr.io/nvidia/pytorch:22.08-py3  # CUDA 11.7
+      image: nvcr.io/nvidia/pytorch:22.04-py3
       options: --gpus all
     runs-on: [self-hosted, linux, x64, integration]
     steps:
@@ -45,9 +45,7 @@ jobs:
       run: |
         which python
         python -m pip install --upgrade pip wheel
-        python -m pip uninstall -y torch torchvision
-        rm -rf $(python -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())")/ruamel*
-        python -m pip install torch==1.13.0+cu117 torchvision==0.14.0+cu117 -f https://download.pytorch.org/whl/torch_stable.html
+        python -m pip install --upgrade torch torchvision
         python -m pip install -r requirements-dev.txt
     - name: Run unit tests report coverage
       run: |