Update ci.yml

Author: Chris McIntosh

.github/workflows/ci.yml

@@ -5,7 +5,7 @@ name: CI
 jobs:
   build_and_test:
     name: Rust project
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     steps:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1