simplify

.github/workflows/codecov.yml

@@ -42,11 +42,10 @@ jobs:
           python-version: '3.10'
 
       # HACK: zlib-ng fails to compile (possibly threading issue), for now use the slower rust backend
-      - name: Find and Replace
+      - name: Replace zlib-ng with slower backend
         shell: bash
         run: |
           find .. -type f -name 'Cargo.toml' -exec sed -i '' 's/zlib-ng/rust_backend/g' {} +
-          cat ../crates/polars-io/Cargo.toml
 
       - name: Create virtual environment
         run: |
@@ -102,6 +101,15 @@ jobs:
       - name: Report coverage
         run: cargo llvm-cov report --lcov --output-path coverage.lcov
 
+      - name: Archive code coverage results
+        uses: actions/upload-artifact@v4
+        with:
+          name: code-coverage-report
+          path: |
+            py-polars/coverage.lcov
+            py-polars/main.xml
+            py-polars/async.xml
+
       - name: Upload coverage information
         uses: codecov/codecov-action@v4
         with: