run dist-x86_64-linux on the self-hosted demo

Author: pietroalbini

src/ci/github-actions/jobs.yml

@@ -112,7 +112,7 @@ jobs:
     env:
       CODEGEN_BACKENDS: llvm,cranelift
       DOCKER_SCRIPT: dist.sh
-    <<: *job-linux-36c-codebuild
+    os: self-hosted-demo
 
 
 # Jobs that run on each push to a pull request (PR).