multiple OS and remove redundant conditions

Author: Hông-Lan Botterman

.github/workflows/test.yml

@@ -13,7 +13,7 @@ on:
 jobs:
   check:
     if: github.event.pull_request.draft == false
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
@@ -66,7 +66,6 @@ jobs:
   docs:
     runs-on: ubuntu-latest
     needs: check
-    if: github.event_name == 'push' || github.event_name == 'pull_request'
 
     steps:
       - name: Checkout