CI: label.yml: fixup for v5 (#13673)

* label.yml: sync-labels true

* fixup: remove unused lines

Signed-off-by: Philip H <47042125+pheiduck@users.noreply.github.com>
Signed-off-by: K.Takata <kentkt@csc.jp>
diff --git a/.github/workflows/label.yml b/.github/workflows/label.yml
index afed05e..d23c4d4 100644
--- a/.github/workflows/label.yml
+++ b/.github/workflows/label.yml
@@ -20,5 +20,3 @@
     - uses: actions/labeler@v5
       with:
         repo-token: "${{ secrets.GITHUB_TOKEN }}"
-        configuration-path: .github/labeler.yml
-        sync-labels: ''