add workflow

.gitea/workflows/default.yaml

@@ -12,13 +12,11 @@ env:
 jobs:
   build:
     runs-on: ubuntu-latest
-
+    container:
+      image: rust:latest
     steps:
     - uses: actions/checkout@v3
 
-    - name: Install Rust toolchain
-      uses: dtolnay/rust-toolchain@stable
-
     - name: Cache dependencies
       uses: actions/cache@v3
       with: