speed up ci

.github/workflows/rust_general.yml

@@ -3,8 +3,14 @@ name: Rust
 on:
   push:
     branches: [ main ]
+    paths:
+      - 'frontend/rust-lib'
+      - 'shared-lib'
   pull_request:
     branches: [ main ]
+    paths:
+      - 'frontend/rust-lib'
+      - 'shared-lib'
 
 env:
   CARGO_TERM_COLOR: always