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]>

Author: dependabot[bot]

.github/workflows/cpymad.yml

@@ -99,7 +99,7 @@ jobs:
           python-version: '3.x'
 
       - name: Download MAD-X
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4.1.7
         with:
           name: madx-static-${{ matrix.os }}-64
           path: ${{ env.MADXDIR }}

.github/workflows/manylinux.yml

@@ -79,7 +79,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4.1.7
         with:
           name: bin-manylinux${{ matrix.manylinux }}-${{ matrix.buildtool }}
           path: bin