Bump org.ajoberstar.grgit:grgit-core from 5.2.1 to 5.2.2 in /buildSrc

Bumps [org.ajoberstar.grgit:grgit-core](https://github.com/ajoberstar/grgit) from 5.2.1 to 5.2.2.
- [Release notes](https://github.com/ajoberstar/grgit/releases)
- [Commits](ajoberstar/grgit@5.2.1...5.2.2)

---
updated-dependencies:
- dependency-name: org.ajoberstar.grgit:grgit-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

buildSrc/build.gradle

@@ -122,7 +122,7 @@ dependencies {
   api 'org.jruby.jcodings:jcodings:1.0.58'
   api 'org.jruby.joni:joni:2.2.1'
   api "com.fasterxml.jackson.core:jackson-databind:${props.getProperty('jackson_databind')}"
-  api "org.ajoberstar.grgit:grgit-core:5.2.1"
+  api "org.ajoberstar.grgit:grgit-core:5.2.2"
 
   testFixturesApi "junit:junit:${props.getProperty('junit')}"
   testFixturesApi "com.carrotsearch.randomizedtesting:randomizedtesting-runner:${props.getProperty('randomizedrunner')}"