ci: run jobs only on ubuntu

Author: mrmlnc

.github/workflows/ci.yml

@@ -6,13 +6,11 @@ on:
 
 jobs:
   test:
+    runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
         node-version: [8.3.0, 8, 10, 12, 14, 16, 18, 20, 22]
-        os: [ ubuntu-latest, macos-latest, windows-latest ]
-
-    runs-on: ${{ matrix.os }}
 
     steps:
     - uses: actions/checkout@v4