Test with all V8 versions on Windows

Author: jeroen

.github/workflows/R-CMD-check.yaml

@@ -24,11 +24,11 @@ jobs:
       matrix:
         config:
           - {os: macos-latest,   r: 'release'}
-
-          - {os: windows-latest, r: 'release'}
-          # use 4.0 or 4.1 to check with rtools40's older compiler
-          - {os: windows-latest, r: 'oldrel-4'}
-
+          - {os: windows-2025, r: '4.5'}
+          - {os: windows-2025, r: '4.4'}
+          - {os: windows-2025, r: '4.3'}
+          - {os: windows-2025, r: '4.2'}
+          - {os: windows-2025, r: '4.1'}
           - {os: ubuntu-latest,  r: 'devel', http-user-agent: 'release'}
           - {os: ubuntu-latest,  r: 'release'}
           - {os: ubuntu-latest,  r: 'oldrel-1'}