fix: correct codecov-action parameter and simplify cross-platform steps

- Change 'file' to 'files' parameter for codecov-action@v5
- Use python -m pip/pytest directly without venv for cross-platform compatibility
- Single unified steps work on all OS (macOS, Ubuntu, Windows)

Author: thomasrockhu-codecov

.github/workflows/test.yml

@@ -34,26 +34,21 @@ jobs:
       - name: Install Rust Toolchain
         run: rustup toolchain install stable --profile minimal --no-self-update
       - name: Install requirements
-        shell: bash
         run: |
-          python -m venv venv
-          source venv/bin/activate
-          pip install maturin
-          pip install -r tests/requirements.txt
+          python -m pip install --upgrade pip
+          python -m pip install maturin
+          python -m pip install -r tests/requirements.txt
           maturin develop
       - name: Run tests
-        shell: bash
-        run: |
-          source venv/bin/activate
-          python -m pytest --cov-report=xml:coverage.xml --cov=. --junitxml=unit.junit.xml
+        run: python -m pytest --cov-report=xml:coverage.xml --cov=. --junitxml=unit.junit.xml
 
       - name: Upload results to codecov
         if: ${{ !cancelled() }}
         uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_ORG_TOKEN }}
           url: ${{ secrets.CODECOV_URL }}
-          file: unit.junit.xml
+          files: unit.junit.xml
           disable_search: true
           report_type: test-results
 
@@ -63,6 +58,6 @@ jobs:
         with:
           token: ${{ secrets.CODECOV_ORG_TOKEN_STAGING }}
           url: ${{ secrets.CODECOV_STAGING_API_URL }}
-          file: unit.junit.xml
+          files: unit.junit.xml
           disable_search: true
           report_type: test-results