android: Update gradle

The previous version e.g. did not support building
Android App Bundles yet.

Drop explicit 'buildToolsVersion', as suggested in the warning
during build:

> WARNING: The specified Android SDK Build Tools version (27.0.3) is ignored,
> as it is below the minimum supported version (28.0.3) for Android Gradle
> Plugin 3.6.1.
> Android SDK Build Tools 28.0.3 will be used.
> To suppress this warning, remove "buildToolsVersion '27.0.3'" from your build.gradle
> file, as each version of the Android Gradle Plugin now has a default
> version of the build tools.

Change-Id: Iea5018366969fcefde1e9f4e8cb9836f5a09b41e
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/90099
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>

0 files changed, 0 insertions, 0 deletions