CI: Temp disable macos and windows runners

Author: hazeycode

.github/workflows/main.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest]
     runs-on: ${{matrix.os}}
     steps:
       - name: Checkout repository