Bump actions/download-artifact from 3 to 4

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -298,7 +298,7 @@ jobs:
     needs: [build, unit-test]
     if: ${{ ! ( github.event.inputs.nuget ) && ! ( contains(github.ref, 'refs/heads/main') ) }}
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         id: download
 
       - name: List artifacts
@@ -323,7 +323,7 @@ jobs:
     needs: [build, unit-test]
     if: ${{ github.event.inputs.nuget }}
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         id: download
 
       - name: List artifacts
@@ -355,7 +355,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         id: download
 
       - name: List artifacts