Fix codecov in workflow

bugfix/unable-to-build-v2-with-swift-6

Author: roanutil

.github/workflows/ci.yml

@@ -41,6 +41,7 @@ jobs:
         run: swift test --enable-code-coverage
       - name: Swift Coverage Report
         run: xcrun llvm-cov export -format="lcov" .build/debug/CoreDataRepositoryPackageTests.xctest/Contents/MacOS/CoreDataRepositoryPackageTests -instr-profile .build/debug/codecov/default.profdata > coverage_report.lcov
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         with:
+          token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: true # optional (default = false)