Bump dawidd6/action-download-artifact from 3 to 6 in /.github/workflows

Bumps [dawidd6/action-download-artifact](https://github.com/dawidd6/action-download-artifact) from 3 to 6.
- [Release notes](https://github.com/dawidd6/action-download-artifact/releases)
- [Commits](dawidd6/action-download-artifact@v3...v6)

---
updated-dependencies:
- dependency-name: dawidd6/action-download-artifact
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/build.yml

@@ -14,28 +14,28 @@ jobs:
       run: |
           echo "target_triplet=`gcc -dumpmachine`" >> $GITHUB_ENV
     - name: fetch libplist
-      uses: dawidd6/action-download-artifact@v3
+      uses: dawidd6/action-download-artifact@v6
       with:
         github_token: ${{secrets.GITHUB_TOKEN}}
         workflow: build.yml
         name: libplist-latest_${{env.target_triplet}}
         repo: libimobiledevice/libplist
     - name: fetch libusbmuxd
-      uses: dawidd6/action-download-artifact@v3
+      uses: dawidd6/action-download-artifact@v6
       with:
         github_token: ${{secrets.GITHUB_TOKEN}}
         workflow: build.yml
         name: libusbmuxd-latest_${{env.target_triplet}}
         repo: libimobiledevice/libusbmuxd
     - name: fetch libimobiledevice-glue
-      uses: dawidd6/action-download-artifact@v3
+      uses: dawidd6/action-download-artifact@v6
       with:
         github_token: ${{secrets.GITHUB_TOKEN}}
         workflow: build.yml
         name: libimobiledevice-glue-latest_${{env.target_triplet}}
         repo: libimobiledevice/libimobiledevice-glue
     - name: fetch libimobiledevice
-      uses: dawidd6/action-download-artifact@v3
+      uses: dawidd6/action-download-artifact@v6
       with:
         github_token: ${{secrets.GITHUB_TOKEN}}
         workflow: build.yml