Update CI runners

Author: apolukhin

.github/workflows/ci.yml

@@ -152,14 +152,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - toolset: msvc-14.0
-            cxxstd: "14,latest"
-            addrmd: 32,64
-            os: windows-2019
-          - toolset: msvc-14.2
+          - toolset: msvc
             cxxstd: "14,17,20,latest"
             addrmd: 32,64
-            os: windows-2019
+            os: windows-2025
           - toolset: msvc-14.3
             cxxstd: "14,17,20,latest"
             addrmd: 32,64
@@ -171,7 +167,7 @@ jobs:
           - toolset: gcc
             cxxstd: "03,11,14,17,2a"
             addrmd: 64
-            os: windows-2019
+            os: windows-2025
 
     runs-on: ${{matrix.os}}