build(deps): bump codecov/codecov-action from 3.1.6 to 4.0.1 (#532)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Rob Ede <robjtede@icloud.com>

Author: dependabot[bot]

.github/workflows/coverage.yml

@@ -31,7 +31,9 @@ jobs:
         run: cargo llvm-cov --workspace --all-features --codecov --output-path codecov.json
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3.1.6
+        uses: codecov/codecov-action@v4.0.1
         with:
           files: codecov.json
           fail_ci_if_error: true
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}