use self-hosted runner

Author: provinzkraut

.github/workflows/ci.yaml

@@ -16,14 +16,12 @@ env:
 
 jobs:
   run:
-    name: Python ${{ matrix.python-version }} on ${{ startsWith(matrix.os, 'macos-') && 'macOS' || startsWith(matrix.os, 'windows-') && 'Windows' || 'Linux' }}
-    runs-on: ${{ matrix.os }}
+    name: Python ${{ matrix.python-version }}
+    runs-on: self-hosted
     timeout-minutes: 30
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest]
-        # os: [ubuntu-latest, windows-latest, macos-latest]
         python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
 
     steps: