build(deps): bump scratch-storage from 1.3.3 to 1.3.4

Bumps [scratch-storage](https://github.com/LLK/scratch-storage) from 1.3.3 to 1.3.4.
- [Release notes](https://github.com/LLK/scratch-storage/releases)
- [Commits](scratchfoundation/scratch-storage@v1.3.3...v1.3.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package-lock.json

@@ -79,7 +79,7 @@
     "scratch-paint": "0.2.0-prerelease.20210407203313",
     "scratch-render": "0.1.0-prerelease.20210325231800",
     "scratch-render-fonts": "1.0.0-prerelease.20210401210003",
-    "scratch-storage": "1.3.3",
+    "scratch-storage": "1.3.4",
     "scratch-svg-renderer": "0.2.0-prerelease.20210408171934",
     "scratch-vm": "0.2.0-prerelease.20210412181234",
     "startaudiocontext": "1.2.1",