Merge pull request #1053 from Cyan4973/ci_rm2019

remove VS2019 from test matrix

.github/workflows/ci.yml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index be746ca..38579da 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -538,7 +538,6 @@
       matrix:
         system: [
           { os: windows-2022, vc: "VC++ 2022", clangcl: 'true', },
-          { os: windows-2019, vc: "VC++ 2019", clangcl: 'true', },
         ]
         arch: [ x64, Win32, ARM64 ]
     # make every PowerShell step start with `$ErrorActionPreference = 'Stop'`