Bump org.ajoberstar.grgit from 5.2.0 to 5.2.1

Bumps [org.ajoberstar.grgit](https://github.com/ajoberstar/grgit) from 5.2.0 to 5.2.1.
- [Release notes](https://github.com/ajoberstar/grgit/releases)
- [Commits](ajoberstar/grgit@5.2.0...5.2.1)

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

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle

@@ -17,7 +17,7 @@ plugins {
     id "application"
     id "base"
     id "java"
-    id "org.ajoberstar.grgit" version "5.2.0"
+    id "org.ajoberstar.grgit" version "5.2.1"
     id "com.diffplug.spotless" version "6.22.0"
     id 'org.openjfx.javafxplugin' version '0.0.13'
     id 'org.beryx.runtime' version '1.13.0'