Use windows-2019 container rather than windows-latest

Author: oleksandr-pavlyk

.github/workflows/conda-package.yml

@@ -59,7 +59,7 @@ jobs:
           path: /usr/share/miniconda/conda-bld/linux-64/${{ env.PACKAGE_NAME }}-*.tar.bz2
 
   build_windows:
-    runs-on: windows-latest
+    runs-on: windows-2019
 
     strategy:
       matrix:
@@ -171,7 +171,7 @@ jobs:
       matrix:
         python: ['3.9', '3.10']
         experimental: [false]
-        runner: [windows-latest]
+        runner: [windows-2019]
     continue-on-error: ${{ matrix.experimental }}
     env:
       CHANNELS: -c conda-forge -c intel --override-channels