build(deps-dev): bump scratch-render

Bumps [scratch-render](https://github.com/LLK/scratch-render) from 0.1.0-prerelease.20200817194622 to 0.1.0-prerelease.20200820192709.
- [Release notes](https://github.com/LLK/scratch-render/releases)
- [Commits](https://github.com/LLK/scratch-render/commits)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -111,7 +111,7 @@
     "scratch-blocks": "0.1.0-prerelease.20200818140148",
     "scratch-l10n": "3.10.20200812030801",
     "scratch-paint": "0.2.0-prerelease.20200813210710",
-    "scratch-render": "0.1.0-prerelease.20200817194622",
+    "scratch-render": "0.1.0-prerelease.20200820192709",
     "scratch-storage": "1.3.3",
     "scratch-svg-renderer": "0.2.0-prerelease.20200610220938",
     "scratch-vm": "0.2.0-prerelease.20200820211625",