Update test suite (#2181)

* pyscript.web tests pass with upytest.
* Refactor of old integration tests to new Python tests.
* Added comprehensive test suite for Python based `pyscript` module.
* Add integration tests to Makefile (and CI)
* Remove un-needed upload action.
* Ensure fails are properly logged as an array. Remove the explicit test step, since this is already built into the build step.
* Bump polyscript.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Andrea Giammarchi <andrea.giammarchi@gmail.com>

.github/workflows/test.yml

@@ -69,12 +69,7 @@ jobs:
                   make setup
 
             - name: Build
-              run: make build
-
-            - name: Integration Tests
-              #run: make test-integration-parallel
-              run: |
-                  make test-integration
+              run: make build # Integration tests run in the build step.
 
             - uses: actions/upload-artifact@v4
               with:
@@ -83,10 +78,3 @@ jobs:
                       pyscript.core/dist/
                   if-no-files-found: error
                   retention-days: 7
-
-            - uses: actions/upload-artifact@v4
-              if: success() || failure()
-              with:
-                  name: test_results
-                  path: test_results/
-                  if-no-files-found: error