use windows 2019 for actions

.github/workflows/build_and_test.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   build:
-    runs-on: windows-latest
+    runs-on: windows-2019
     steps:
       - uses: actions/checkout@master
 

.github/workflows/nightly_release.yml

@@ -24,7 +24,7 @@ jobs:
   build_and_publish_nightly:
     needs: check_date
     if: ${{ needs.check_date.outputs.should_run != 'false' }}
-    runs-on: windows-latest
+    runs-on: windows-2019
     name: build_and_publish_nightly
     steps:
       - uses: actions/checkout@master