Only check embedded snippets and links on linux

Author: jasongrout

.github/workflows/main.yml

@@ -244,11 +244,9 @@ jobs:
           pip uninstall -y ${NAME}
 
   build_all:
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     strategy:
       fail-fast: false
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
       - name: Checkout
         uses: actions/checkout@v4