chore: removing windows 2019 from infra agent build (#1363)

Author: kondracek-nr

.github/workflows/build-win-infra-agent.yml

@@ -54,8 +54,6 @@ jobs:
       fail-fast: true
       matrix:
         windows:
-          - runner: windows-x64-8-core
-            tag: ltsc2019
           - runner: windows-x64-8-core
             tag: ltsc2022
     runs-on: ${{ matrix.windows.runner }}