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] <[email protected]>

Author: dependabot[bot]

.github/workflows/main.yaml

@@ -170,7 +170,7 @@ jobs:
         run: git pull origin main
 
       # 1. Download the artifacts
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
 
       # 2. Publish the extension to VS Code Marketplace
       - name: Publish to VS Code Marketplace

.github/workflows/preview.yaml

@@ -156,7 +156,7 @@ jobs:
           git config --local user.name "GitHub Action"
 
       # Download the .vsix artifacts
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
 
       - name: Tag the repository
         id: tag
@@ -205,7 +205,7 @@ jobs:
         run: git pull origin preview
 
       # 1. Download the artifacts
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
 
       # 2. Publish the extension to VS Code Marketplace
       - name: Publish to VS Code Marketplace