👷 Fix codecov upload conditions in CI (#395)

* 💚 Fix codecov upload conditions in CI

* debug: trigger workflow

* Revert "debug: trigger workflow"

This reverts commit 7c90fbd.

.github/workflows/ci.yaml

@@ -58,15 +58,15 @@ jobs:
       # TODO: move coverage to a separate job instead of conditionally running it
       # on the ubuntu-22.04 runner as a workaround for only running it once
       - name: Install cargo-llvm-cov
-        if: runner.os == 'ubuntu-22.04'
+        if: matrix.os == 'ubuntu-22.04'
         run: cargo install cargo-llvm-cov
 
       - name: Generate code coverage data
-        if: runner.os == 'ubuntu-22.04'
+        if: matrix.os == 'ubuntu-22.04'
         run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
 
       - name: Upload coverage to Codecov
-        if: runner.os == 'ubuntu-22.04'
+        if: matrix.os == 'ubuntu-22.04'
         uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}