Bump nullaway from 0.7.9 to 0.7.10

Bumps [nullaway](https://github.com/uber/NullAway) from 0.7.9 to 0.7.10. - [Release notes](https://github.com/uber/NullAway/releases) - [Changelog](https://github.com/uber/NullAway/blob/master/CHANGELOG.md) - [Commits](uber/NullAway@v0.7.9...v0.7.10) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

build.gradle

@@ -20,7 +20,7 @@ ext.deps = [rxjava2 : 'io.reactivex.rxjava2:rxjava:2.2.19',
  truth : 'com.google.truth:truth:1.0.1',
  robolectric : 'org.robolectric:robolectric:4.3.1',
  mockitocore : 'org.mockito:mockito-core:3.3.3',
- nullaway : 'com.uber.nullaway:nullaway:0.7.9',
+ nullaway : 'com.uber.nullaway:nullaway:0.7.10',
  errorprone : 'com.google.errorprone:error_prone_core:2.3.4',
  nopen : 'com.jakewharton.nopen:nopen-annotations:1.0.1',
  nopenchecker : 'com.jakewharton.nopen:nopen-checker:1.0.1',