Update brave monorepo to v5.15.0 (#388)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gradle.properties

@@ -4,7 +4,7 @@ avroVersion=1.10.2
 awsV1Version=1.0.8
 awsVersion=2.16.104
 awsXrayVersion=2.7.1
-braveVersion=5.13.11
+braveVersion=5.15.0
 cglibVersion=3.3.0
 elasticMqVersion=0.15.8
 guavaVersion=29.0-jre