Update main.yml

Another rustc version update

.github/workflows/main.yml

@@ -36,7 +36,7 @@ jobs:
       - name: Install rust
         uses: hecrj/setup-rust-action@v1
         with:
-          rust-version: '1.60.0'
+          rust-version: '1.81.0'
 
       - name: Log versions
         run: |