Update bundletool. am: c436bf1ae7

Original change: https://android-review.googlesource.com/c/platform/prebuilts/bundletool/+/1794590

Change-Id: I0784176f2c7d532c1eb6245a1bd9fedd47974abe
tree: 3b7f764e0ed3b7f7c29a7c7562025100d8e65fc2
  1. bundletool-all-20210812.jar
  2. LICENSE
  3. METADATA
  4. MODULE_LICENSE_APACHE2