CodeQL: windows-2019 to attempt to work around broken analysis

See actions/runner-images#856

Author: cdrnet

.github/workflows/codeql-analysis.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   analyze:
     name: Analyze
-    runs-on: windows-latest
+    runs-on: windows-2019
 
     strategy:
       fail-fast: false