Bump actions/download-artifact from 2 to 4.1.7 in /.github/workflows

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 2 to 4.1.7.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v2...v4.1.7)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/rust.yml

@@ -285,7 +285,7 @@ jobs:
       #   env:
       #     GITHUB_TOKEN: ${{ github.token }}
       - name: Download
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4.1.7
         with:
           name: ${{ env.file_name }}
           path: ${{ env.file_dir }}
@@ -321,7 +321,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Download linux musl
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4.1.7
         with:
           name: unftp_x86_64-unknown-linux-musl
           path: ./x86_64-unknown-linux-musl