Replace `file-changes-action` with `changed-files`

[yo1995]

https://github.com/Esri/arcgis-maps-sdk-swift-samples/blob/0ad18f428fe220bd800a7d7c8844f5d31b1daeae/.github/workflows/main.yml#L36

https://github.com/trilom/file-changes-action hasn't seen an update for 3+ years. While it is still running fine, we may explore other options in case it breaks one day.

We may switch to https://github.com/tj-actions/changed-files which is actively maintained.

[yo1995]

Presumably the change would be like below; also apply the change to the actual running script step.

      - name: Detect changed file paths
-        id: file_changes
-        uses: trilom/file-changes-action@master
      - name: Detect changed file paths
+        id: changed-files
+        uses: tj-actions/changed-files@v35

      - name: Print changed file paths
        run: |
          echo 'Below shows a list of changed file paths'
-          echo '${{ steps.file_changes.outputs.files}}'
+          echo '${{ steps.changed-files.outputs.all_changed_files}}'