build(deps): bump org.eclipse.jgit:org.eclipse.jgit

Bumps org.eclipse.jgit:org.eclipse.jgit from 6.2.0.202206071550-r to 6.6.0.202305301015-r.

---
updated-dependencies:
- dependency-name: org.eclipse.jgit:org.eclipse.jgit
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -25,7 +25,7 @@ ajalt-mordant                  = "2.0.0-beta14"
 ajalt-colormath                = "3.3.1"
 dokka                          = "1.8.20"
 helidon-nima                   = "4.0.0-ALPHA6"
-jgit                           = "6.2.0.202206071550-r"
+jgit                           = "6.6.0.202305301015-r"
 jte                            = "3.0.0"
 junit                          = "5.10.0-M1"
 kotlinx-atomicfu               = "0.21.0"