Merge pull request scratchfoundation#5739 from LLK/dependabot/npm_and_yarn/scratch-l10n-3.9.20200512112117

Author: dependabot-preview[bot]

package-lock.json

@@ -109,7 +109,7 @@
     "rimraf": "^2.6.1",
     "scratch-audio": "0.1.0-prerelease.20190925183642",
     "scratch-blocks": "0.1.0-prerelease.20200507190920",
-    "scratch-l10n": "3.8.20200505213509",
+    "scratch-l10n": "3.9.20200512112117",
     "scratch-paint": "0.2.0-prerelease.20200507195338",
     "scratch-render": "0.1.0-prerelease.20200511203322",
     "scratch-storage": "1.3.3",