Upgrade to C++17

.github/workflows/windows-simple-builds.yml

@@ -4,7 +4,7 @@ on: [push, pull_request]
 
 jobs:
   build:
-    name: ${{matrix.os}}, ${{matrix.std}}, ${{matrix.build_type}}, ${{matrix.platform}}
+    name: ${{matrix.os}}, ${{matrix.build_type}}, ${{matrix.platform}}
     runs-on: ${{matrix.os}}
     strategy:
       fail-fast: false
@@ -12,7 +12,6 @@ jobs:
         os: [windows-2022, windows-2025]
         platform: [Win32, x64]
         build_type: [Debug, Release]
-        std: [14, 17]
     steps:
       - uses: actions/checkout@v4
 
@@ -20,7 +19,6 @@ jobs:
         run: |
           cmake --preset all-tests `
                 -A ${{matrix.platform}} `
-                -DCMAKE_CXX_STANDARD=${{matrix.std}} `
 
       - name: Build tests
         run: cmake --build build --config ${{matrix.build_type}} --parallel %NUMBER_OF_PROCESSORS%