Use Codecov 4

.github/workflows/ci.yml

@@ -64,7 +64,13 @@ jobs:
         run: ./Scripts/prepare-coverage-reports.sh
       - name: Upload Coverage Reports
         if: success()
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
+        with:
+          fail_ci_if_error: true
+          verbose: true
+          os: macos
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
   linux:
     name: Build and Test on Linux
@@ -75,12 +81,24 @@ jobs:
         uses: actions/checkout@v4
       - name: Build and Test Framework
         run: swift test -c release --enable-code-coverage -Xswiftc -enable-testing
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+      - name: Setup repo root for Codecov
+        run: git config --global --add safe.directory "$GITHUB_WORKSPACE" # See https://github.com/codecov/feedback/issues/263
       - name: Prepare Coverage Reports
         run: |
           llvm-cov export -format="lcov" .build/x86_64-unknown-linux-gnu/release/SafeDIPackageTests.xctest -instr-profile .build/x86_64-unknown-linux-gnu/release/codecov/default.profdata > coverage.lcov
       - name: Upload Coverage Reports
         if: success()
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
+        with:
+          fail_ci_if_error: true
+          verbose: true
+          os: linux
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
   readme-validation:
     name: Check Markdown links