Removed windows-2019 GitHub Actions jobs.

The windows-2019 image is deprecated and is about to be removed.

.github/workflows/ci.yml

@@ -1,4 +1,4 @@
-# Copyright 2021-2024 Andrey Semashev
+# Copyright 2021-2025 Andrey Semashev
 #
 # Distributed under the Boost Software License, Version 1.0.
 # (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
@@ -534,14 +534,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - toolset: msvc-14.0
-            cxxstd: "14"
-            addrmd: 32,64
-            os: windows-2019
-          - toolset: msvc-14.2
-            cxxstd: "14,17,20,latest"
-            addrmd: 32,64
-            os: windows-2019
           - toolset: msvc-14.3
             cxxstd: "14,17,20,latest"
             addrmd: 32,64
@@ -551,9 +543,9 @@ jobs:
             addrmd: 32,64
             os: windows-2022
           - toolset: gcc
-            cxxstd: "11,14,17,2a"
+            cxxstd: "11,14,17,20,23"
             addrmd: 64
-            os: windows-2019
+            os: windows-2022
 
     timeout-minutes: 15
     runs-on: ${{matrix.os}}