Make coverage a matrix variable

Author: alexdewar

.github/workflows/cargo-test.yml

@@ -17,14 +17,17 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
+        include:
+          - os: ubuntu-latest
+            coverage: true
     steps:
       - uses: actions/checkout@v4
       - uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           toolchain: stable
       - run: cargo test --verbose
 
-      - if: ${{ matrix.os == 'ubuntu-latest' }}
+      - if: ${{ matrix.coverage }}
         uses: ./.github/actions/codecov
         with:
           token: ${{ secrets.CODECOV_TOKEN }}