ci: only upload coverage after packaging

.github/workflows/build.yml

@@ -9,7 +9,7 @@ jobs:
         os: [macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -67,18 +67,16 @@ jobs:
             src/Rust/target/release/*.exe
 
       - name: Upload Coverage
-        uses: codecov/codecov-action@v3
-        env:
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        uses: actions/upload-artifact@v3
         with:
-          directory: ./test
-          fail_ci_if_error: true
+          name: coverage
+          path: test/coverage*.xml
   
   package:
     runs-on: ubuntu-latest
     needs: [build]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -108,6 +106,12 @@ jobs:
           name: rust
           path: src/Rust/target/release
 
+      - name: Download Coverage Artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: coverage
+          path: ./coverage
+
       - name: Build .NET
         run: dotnet build -c Release /p:PackRustAssets=true
 
@@ -117,6 +121,14 @@ jobs:
           name: packages
           path: .\build\Release\*.nupkg
 
+      - name: Upload Coverage to Codecov
+        uses: codecov/codecov-action@v3
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        with:
+          directory: ./coverage
+          fail_ci_if_error: true
+
       - name: Publish to GitHub Packages
         shell: pwsh
         run: dotnet nuget push .\build\Release\*.nupkg -k ${{ secrets.GITHUB_TOKEN }} -s https://nuget.pkg.github.com/${{ github.repository_owner }}/index.json --skip-duplicate