chore(package): update scratch-audio to version 0.1.0-prerelease.1528394075

package.json

@@ -91,7 +91,7 @@
     "redux-mock-store": "^1.2.3",
     "redux-throttle": "0.1.1",
     "rimraf": "^2.6.1",
-    "scratch-audio": "0.1.0-prerelease.1528210666",
+    "scratch-audio": "0.1.0-prerelease.1528394075",
     "scratch-blocks": "0.1.0-prerelease.1528384994",
     "scratch-l10n": "3.0.20180604162003",
     "scratch-paint": "0.2.0-prerelease.20180607153112",