ci(tests): drop explicit name on windows-acceptance to fix skipped label

GitHub evaluates job-level `if:` before matrix expansion, so a skipped
job with a `${{ matrix.name }}` template leaks the raw template into
the PR checks UI. Removing the explicit `name:` lets GitHub auto-name
from the job id (`windows-acceptance` when skipped, `windows-acceptance
(a-e)` etc. when running).

Author: Chemaclass

.github/workflows/tests.yml

@@ -140,7 +140,6 @@ jobs:
         run: ./bashunit --parallel --jobs 4 ${{ matrix.test_path }}
 
   windows-acceptance:
-    name: "Windows acceptance - ${{ matrix.name }}"
     if: github.event_name == 'push'
     timeout-minutes: 10
     runs-on: windows-latest