github-actions: Bump actions/upload-artifact from 3 to 4 (#48)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/render.yml

@@ -32,7 +32,7 @@ jobs:
       - name: Render
         run: npm run render:${{ inputs.format }} --video=${{ inputs.name }}
       - name: Upload rendered video artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: out
           path: out