Bump actions/download-artifact from 1 to 4.1.7 in /.github/workflows

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 1 to 4.1.7.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v1...v4.1.7)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/pythonpackage.yml

@@ -39,7 +39,7 @@ jobs:
       uses: actions/setup-python@v1
       with:
         python-version: ${{ matrix.python-version }}
-    - uses: actions/download-artifact@v1
+    - uses: actions/download-artifact@v4.1.7
       with:
         name: wheels
         path: wheelhouse
@@ -100,7 +100,7 @@ jobs:
     - uses: actions/checkout@v2
       with:
         submodules: recursive
-    - uses: actions/download-artifact@v1
+    - uses: actions/download-artifact@v4.1.7
       with:
         name: abieos-macos
         path: external/abieos/build
@@ -129,19 +129,19 @@ jobs:
       uses: actions/setup-python@v1
       with:
         python-version: '3.x'
-    - uses: actions/download-artifact@v1
+    - uses: actions/download-artifact@v4.1.7
       with:
         name: wheels
         path: wheelhouse
-    - uses: actions/download-artifact@v1
+    - uses: actions/download-artifact@v4.1.7
       with:
         name: dist-macos-3.6
         path: dist
-    - uses: actions/download-artifact@v1
+    - uses: actions/download-artifact@v4.1.7
       with:
         name: dist-macos-3.7
         path: dist
-    - uses: actions/download-artifact@v1
+    - uses: actions/download-artifact@v4.1.7
       with:
         name: dist-macos-3.8
         path: dist