Use llvm-cov for code coverage

.github/workflows/build.yml

@@ -93,16 +93,15 @@ jobs:
   coverage:
     name: Coverage
     runs-on: ubuntu-latest
-    container:
-      image: xd009642/tarpaulin:latest
-      options: --security-opt seccomp=unconfined
     steps:
-
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
 
-      - name: Run cargo-tarpaulin
-        run: cargo tarpaulin --out Lcov -- --test-threads 1
+      - name: Install cargo-llvm-cov
+        uses: taiki-e/install-action@cargo-llvm-cov
+
+      - name: Generate code coverage
+        run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
 
       - name: upload to Coveralls
         uses: coverallsapp/github-action@master