ci: generate test coverage reports (#343)

.github/workflows/ci.yaml

@@ -36,10 +36,20 @@ jobs:
             target/
           key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
 
-      - name: Cargo test
+      - name: Update Rust
         run: |
           rustup update
-          RUST_BACKTRACE=1 cargo test --all -- --test-threads=1
+          cargo install --force cargo-tarpaulin
+
+      - name: Run Core tests
+        run: |
+          cd ${{ github.workspace }}/components/ordhook-core
+          cargo tarpaulin --skip-clean --out lcov -- --test-threads=1
+
+      - name: Run CLI tests
+        run: |
+          cd ${{ github.workspace }}/components/ordhook-cli
+          cargo tarpaulin --skip-clean --out lcov -- --test-threads=1
 
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v4.0.1