add rustup update script to rust.yml

Author: selfup

.github/workflows/rust.yml

@@ -16,6 +16,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
+    - name: Rustup Update
+    - run: rustup update
     - name: OS Deps
       run: "sudo apt-get update \
               && sudo apt-get install \