gha: latest tj-actions/changed-files

See https://github.com/tj-actions/changed-files/releases/tag/v46.0.1

Author: andrewhsu

.github/workflows/changelog.yml

@@ -17,7 +17,7 @@ jobs:
 
       - name: Get all changed changelog files
         id: changed-changelog-files
-        uses: tj-actions/changed-files@v45
+        uses: tj-actions/changed-files@v46
         with:
           files: |
             .changes/unreleased/**.yaml