chore: updated upload artifact version

Author: shubhamparikh2704

.github/workflows/build.yml

@@ -37,13 +37,13 @@ jobs:
         run: pnpm run build
 
       - name: Upload Mermaid Build as Artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: mermaid-build
           path: packages/mermaid/dist
 
       - name: Upload Mermaid Mindmap Build as Artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: mermaid-mindmap-build
           path: packages/mermaid-mindmap/dist