ci: Fix Windows test name

The Windows test runs on `zephyr-runner-v2-windows-x64-2xlarge`, which
is Windows Server 2022, not 2019.

Signed-off-by: Stephanos Ioannidis <[email protected]>

Author: stephanosio

.github/workflows/ci.yml

@@ -383,7 +383,7 @@ jobs:
 
         if [ "${build_host_windows_x86_64}" == "y" ]; then
           MATRIX_TESTENVS+='{
-              "name": "windows-2019-x86_64",
+              "name": "windows-2022-x86_64",
               "runner": "zephyr-runner-v2-windows-x64-2xlarge",
               "container": "",
               "bundle-host": "windows-x86_64",