Subject: add audit to ci

.github/workflows/ci.yml

@@ -12,15 +12,14 @@ jobs:
   build_and_test:
     name: Rust project - latest
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        toolchain:
-          - stable
-          - beta
-          - nightly
     steps:
-      - uses: actions/checkout@v3
-      - run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
-      - run: cargo build --verbose
-      - run: cargo test --verbose
-
+      - name: Set up Rust
+        uses: actions/checkout@v3
+      - name: Install cargo-audit
+        run: cargo install cargo-audit
+      - name: Build
+        run: cargo build --verbose
+      - name: Test
+        run: cargo test --verbose
+      - name: Audit
+        run: cargo audit