[github-actions] Bump dawidd6/action-download-artifact from 3 to 6

.github/workflows/build.yml

@@ -17,7 +17,7 @@ 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
@@ -60,7 +60,7 @@ jobs:
           fi
       shell: bash
     - name: fetch libplist
-      uses: dawidd6/action-download-artifact@v3
+      uses: dawidd6/action-download-artifact@v6
       with:
         github_token: ${{secrets.GITHUB_TOKEN}}
         workflow: build.yml
@@ -133,7 +133,7 @@ jobs:
           echo "dest=$dest" >> $GITHUB_ENV
           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