Bump actions/download-artifact from 2 to 4.1.7 in /.github/workflows (#16)

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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/forty-features.yml

@@ -42,7 +42,7 @@ jobs:
           aws-region: ${{ secrets.AWS_REGION }}
 
       - name: Download PDF artifact
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4.1.7
         with:
           name: slides-pdf
 

.github/workflows/python-classes.yml

@@ -53,7 +53,7 @@ jobs:
           aws-region: ${{ secrets.AWS_REGION }}
 
       - name: Download PDF artifact
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4.1.7
         with:
           name: slides-pdf