Excavator: Upgrades Baseline to the latest version (#646)

###### _excavator_ is a bot for automating changes across repositories.

Changes produced by the roomba/latest-baseline-oss check.

# Release Notes
## 5.2.0
| Type | Description | Link |
| ---- | ----------- | ---- |
| Improvement | Add check: Use Collection.isEmpty() instead of comparing size() with 0 | palantir/gradle-baseline#2530 |



To enable or disable this check, please contact the maintainers of Excavator.

Author: svc-excavator-bot

build.gradle

@@ -10,7 +10,7 @@ buildscript {
         classpath 'com.palantir.gradle.jdkslatest:gradle-jdks-latest:0.7.0'
         classpath 'com.palantir.gradle.externalpublish:gradle-external-publish-plugin:1.12.0'
         classpath 'com.gradle.publish:plugin-publish-plugin:1.1.0'
-        classpath 'com.palantir.baseline:gradle-baseline-java:5.1.0'
+        classpath 'com.palantir.baseline:gradle-baseline-java:5.2.0'
         classpath 'com.palantir.gradle.conjure:gradle-conjure:5.37.0'
         classpath 'com.palantir.gradle.consistentversions:gradle-consistent-versions:2.12.0'
         classpath 'com.palantir.gradle.gitversion:gradle-git-version:3.0.0'