Bump retrofitVersion from 2.11.0 to 3.0.0

Bumps `retrofitVersion` from 2.11.0 to 3.0.0.

Updates `com.squareup.retrofit2:retrofit` from 2.11.0 to 3.0.0
- [Release notes](https://github.com/square/retrofit/releases)
- [Changelog](https://github.com/square/retrofit/blob/trunk/CHANGELOG.md)
- [Commits](lysine-dev/retrofit@2.11.0...3.0.0)

Updates `com.squareup.retrofit2:converter-jackson` from 2.11.0 to 3.0.0
- [Release notes](https://github.com/square/retrofit/releases)
- [Changelog](https://github.com/square/retrofit/blob/trunk/CHANGELOG.md)
- [Commits](lysine-dev/retrofit@2.11.0...3.0.0)

---
updated-dependencies:
- dependency-name: com.squareup.retrofit2:retrofit
  dependency-version: 3.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: com.squareup.retrofit2:converter-jackson
  dependency-version: 3.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

build.gradle

@@ -3,7 +3,7 @@ buildscript {
         springBootVersion = project.hasProperty('springBootVersion') ? project.springBootVersion : '3.5.0'
         springVersion = project.hasProperty('springFrameworkVersion') ? project.springFrameworkVersion : '6.2.7'
         jacksonVersion = '2.19.0'
-        retrofitVersion = '2.11.0'
+        retrofitVersion = '3.0.0'
         mockitoVersion = '5.2.+' // At least Mockito 5.2.0 is required to Mock final classes
     }
     dependencies {