CI: Change job name to 'build arm64' on Windows (pythonGH-129434)

(cherry picked from commit c67afb5)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Author: hugovk

.github/workflows/reusable-windows.yml

@@ -24,7 +24,7 @@ env:
 
 jobs:
   build:
-    name: 'build and test (${{ inputs.arch }})'
+    name: ${{ inputs.arch == 'arm64' && 'build' || 'build and test' }} (${{ inputs.arch }})
     runs-on: ${{ inputs.os }}
     timeout-minutes: 60
     env: