fix: ci download sha256 file

Signed-off-by: hantmac <hantmac@outlook.com>

.github/workflows/release.yaml

@@ -95,18 +95,15 @@ jobs:
       - name: Get release
         id: get_release
         uses: bruceadams/get-release@v1.2.2
-      - name: Download sha256sums
+      - name: Download artifacts
         uses: actions/download-artifact@v4.1.7
         with:
-          name: 'sha256sums-*'
+          pattern: sha256sums-*
+          merge-multiple: true
           path: sha256sums
       - shell: bash
         run: |
-          cd sha256sums
-          for file in */*.txt
-          do
-            cat ${file} >> ../sha256sums.txt
-          done
+          cat sha256sums/*.txt > sha256sums.txt
       - name: Upload Checksums
         uses: actions/upload-release-asset@v1.0.2
         with:
@@ -115,4 +112,4 @@ jobs:
           asset_name: sha256sums-${{ steps.get_release.outputs.tag_name }}.txt
           asset_content_type: text/plain
       - name: Update kubectl plugin version in krew-index
-        uses: rajatjindal/krew-release-bot@v0.0.43
+        uses: rajatjindal/krew-release-bot@v0.0.43