only run this workflow on changes applied to rust files

Author: hacknus

.github/workflows/rust.yml

@@ -3,8 +3,14 @@ name: Rust
 on:
   push:
     branches: [ "main" ]
+    paths:
+      - "**/*.rs"
+      - "**/Cargo.toml"
   pull_request:
     branches: [ "main" ]
+    paths:
+      - "**/*.rs"
+      - "**/Cargo.toml"
 
 env:
   CARGO_TERM_COLOR: always