feature: workflow for cargo audit

Author: joske

.circleci/config.yml

@@ -400,7 +400,7 @@ jobs:
     steps:
       - checkout
       - setup_environment:
-          cache_key: v3.3.1-rust-1.83.0--cache
+          cache_key: v3.3.1-rust-1.83.0-machete-cache
       - run:
           name: Check for unused dependencies
           no_output_timeout: 35m
@@ -410,6 +410,23 @@ jobs:
       - clear_environment:
           cache_key: v3.3.1-rust-1.83.0-machete-cache
 
+  check-cargo-audit:
+    docker:
+      - image: cimg/rust:1.83.0 # Attention - Change the MSRV in Cargo.toml and rust-toolchain as well
+    resource_class: << pipeline.parameters.medium >>
+    steps:
+      - checkout
+      - setup_environment:
+          cache_key: v3.3.1-rust-1.83.0-cargo-audit-cache
+      - run:
+          name: Check for unused dependencies
+          no_output_timeout: 35m
+          command: |
+            cargo install cargo-audit@0.7.0
+            cargo audit -D warnings
+      - clear_environment:
+          cache_key: v3.3.1-rust-1.83.0-cargo-audit-cache
+
   check-clippy:
     docker:
       - image: cimg/rust:1.83.0 # Attention - Change the MSRV in Cargo.toml and rust-toolchain as well