Force MacOS for testing.

.github/workflows/ci.yml

@@ -13,9 +13,8 @@ on:
       - 'Docs/**'
       - 'Site/**'
   schedule:
-    # Run daily at 00:00 so we get notified if CI is broken before a pull request
-    # is submitted.
-    - cron:  '0 0 * * *'
+    # Run every 30 mins.
+    - cron:  '*/30 * * * *'
 
 env:
   DOTNET_NOLOGO: true
@@ -99,25 +98,7 @@ jobs:
       - name: Setup OS matrix
         id: setup-os-matrix
         run: |
-          os=("ubuntu-latest" "windows-latest")
-
-          # runs on macOS only if there is a push to master, or a tag is
-          # pushed, we do this since macOS builds last too long and ILGPU
-          # is rarely used on a macOS
-          (
-            [ "${{ github.event_name }}" == "workflow_dispatch" ] ||
-            [ "${{ github.event_name }}" == "schedule" ] ||
-            (
-              [ "${{ github.event_name }}" == "push" ] &&
-              (
-                [ "${{ github.ref }}" == "refs/heads/master" ] ||
-                [[ "${{ github.ref }}" =~ "refs/tags/v" ]]
-              )
-            )
-          ) && os+=("macos-latest")
-
-          [ "${{ steps.is-fork.outputs.fork }}" == "false" ] && os+=("cuda")
-
+          os=("macos-latest")
           echo "os=$(jq -cn '$ARGS.positional' --args ${os[@]})" >> $GITHUB_OUTPUT
     outputs:
       os: ${{ steps.setup-os-matrix.outputs.os }}