Bump tj-actions/changed-files from 46 to 47 (#3602)

Bumps [tj-actions/changed-files](https://github.com/tj-actions/changed-files) from 46 to 47.
- [Release notes](https://github.com/tj-actions/changed-files/releases)
- [Changelog](https://github.com/tj-actions/changed-files/blob/main/HISTORY.md)
- [Commits](tj-actions/changed-files@v46...v47)

---
updated-dependencies:
- dependency-name: tj-actions/changed-files
  dependency-version: '47'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Harry <Harry@cadby.co.uk>

Author: dependabot[bot]

.github/workflows/validation.yml

@@ -97,7 +97,7 @@ jobs:
         run: pytest --tb=short -v
       - name: Check for pickle file change
         id: pickle-change
-        uses: tj-actions/changed-files@v46
+        uses: tj-actions/changed-files@v47
         with:
           files: tests/known-slugs.pickle
       - name: Add PR Comment if pickle file is modified