Add code quality scanning

Author: casibbald

.github/workflows/scan.yml

@@ -99,7 +99,7 @@ jobs:
         run: |
           cargo install cargo-sonar 
           cargo clippy --message-format json > my-clippy-report.json
-          cargo sonar --issues clippy --clippy-path my-clippy-report.json
+          cargo sonar --clippy-path my-clippy-report.json
 
       - name: Generate code coverage
         run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info