Re-enable CI tests (#1760)

This re-enables CI tests on every PR 🎉.
This uses make test-integration, which runs tests sequentially.

In theory, we also have test-integration-parallel but it seems to be very flaky: many tests randomly timeout. I didn't spend too much time investigating this, it's probably worth its own investigation in a separate PR, but for now it's important to re-enable CI tests, even if they are a bit slower.

pyscriptjs/environment.yml

@@ -1,26 +0,0 @@
-channels:
-    - defaults
-    - conda-forge
-    - microsoft
-dependencies:
-    - python=3.11.3
-    - pip
-    - pytest=7.1.2
-    - nodejs=16
-    - black
-    - isort
-    - codespell
-    - pre-commit
-    - pillow
-    - numpy
-    - markdown
-    - toml
-    - pip:
-          - playwright==1.33.0
-          - pytest-playwright==0.3.3
-          - pytest-xdist==3.3.0
-          - pexpect
-          # We need Pyodide and micropip so we can import them in our Python
-          # unit tests
-          - pyodide_py==0.23.2
-          - micropip==0.2.2