change arm target to arm in workflow

Author: samicpp

.github/workflows/rust.yml

@@ -27,10 +27,10 @@ jobs:
             target: x86_64-pc-windows-msvc
             test: true
 
-          - os: ubuntu-latest
+          - os: ubuntu-latest-arm
             channel: stable
             target: aarch64-unknown-linux-gnu
-            test: false
+            test: true
 
     steps:
     - uses: actions/checkout@v4