ci: drop removed windows-2019 runner

Author: sergiud

.github/workflows/windows.yml

@@ -5,7 +5,7 @@ on: [push, pull_request]
 jobs:
   build-mingw:
     name: ${{matrix.sys}}-${{matrix.env}}-${{matrix.build_type}}-${{matrix.lib}}-${{matrix.components}}-${{matrix.metis}}
-    runs-on: windows-latest
+    runs-on: windows-2025
     defaults:
       run:
         shell: msys2 {0}
@@ -106,7 +106,7 @@ jobs:
       fail-fast: true
       matrix:
         build_type: [Release, Debug]
-        msvc: [VS-16-2019, VS-17-2022]
+        msvc: [VS-17-2022]
         sys: [mingw64]
         lib: [shared, static]
         components: [minimal, lgpl, gpl]
@@ -119,13 +119,9 @@ jobs:
           - sys: mingw64
             env: x86_64
             system: Win64
-          - msvc: VS-16-2019
-            generator: "Visual Studio 16 2019"
-            os: windows-2019
-            marker: vc16
           - msvc: VS-17-2022
             generator: "Visual Studio 17 2022"
-            os: windows-2022
+            os: windows-2025
             marker: vc17
 
     steps: