Update rust.yml

Author: RKennedy9064

.github/workflows/rust.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Install Rustup
         run: |
           curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly
-          echo ::add-path::$HOME/.cargo/bin
+          echo "$HOME/.cargo/bin" >> $GITHUB_PATH
         if: runner.os == 'macOS'
 
       - name: "Print Rust Version"