ci: add audit in CI

.github/workflows/build-project.yaml

@@ -19,6 +19,10 @@ jobs:
         run: cargo fmt
       - name: Run linter
         run: cargo clippy -- --deny warnings
+      - name: Audit
+        run: |
+          cargo install cargo-audit
+          cargo audit --deny warnings
       - name: Run tests
         run: cargo test
       - name: Build the project