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] <support@github.com>

.github/workflows/macos_test.yml

@@ -58,7 +58,7 @@ jobs:
     if: github.event_name == 'release'
 
     steps:
-    - uses: actions/download-artifact@v2
+    - uses: actions/download-artifact@v4.1.7
       with:
         name: artifact
         path: dist

.github/workflows/pythonpackage.yml

@@ -56,7 +56,7 @@ jobs:
     if: github.event_name == 'release'
 
     steps:
-    - uses: actions/download-artifact@v2
+    - uses: actions/download-artifact@v4.1.7
       with:
         name: artifact
         path: dist