CI: Run all Rust unit tests

Update the CI workflow so that all unit tests are executed.
These tests are run in the same manner as defined in the developer docs.

Closes #3260.

.github/workflows/ci.yaml

@@ -58,7 +58,7 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: test
-          args: --verbose ${{ env.CARGO_ARGS }} ${{ env.NON_WASM_PACKAGES }}
+          args: --workspace --exclude rustpython_wasm --verbose ${{ env.CARGO_ARGS }} ${{ env.NON_WASM_PACKAGES }}
       - name: check compilation without threading
         uses: actions-rs/cargo@v1
         with: