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.

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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>

pyscript.core/tests/python/example_js_module.js

@@ -0,0 +1,7 @@
+/*
+A simple JavaScript module to test the integration with Python.
+*/
+
+export function hello() {
+    return "Hello from JavaScript!";
+}