Remove hangar4j dependency, add custom logic

Removed the JitPack repository and the hangar4j dependency from both paper and version-checker modules. Added a new dependency on Gson in the version-checker module to support the custom logic implementation.

Author: david

paper/build.gradle.kts

@@ -16,7 +16,6 @@ version = "1.4.1"
 
 repositories {
     mavenCentral()
-    maven("https://jitpack.io")
     maven("https://repo.papermc.io/repository/maven-public/")
     maven("https://s01.oss.sonatype.org/content/repositories/snapshots/")
 }
@@ -27,7 +26,6 @@ dependencies {
     compileOnly(project(":annotations"))
 
     api(project(":version-checker"))
-    api("com.github.xmrafonso:hangar4j:1.2.2")
 
     annotationProcessor("org.projectlombok:lombok:1.18.34")
 }

version-checker/build.gradle.kts

@@ -16,15 +16,14 @@ version = "1.0.1"
 
 repositories {
     mavenCentral()
-    maven("https://jitpack.io")
 }
 
 dependencies {
     compileOnly("org.projectlombok:lombok:1.18.34")
     compileOnly("org.jetbrains:annotations:24.1.0")
     compileOnly(project(":annotations"))
 
-    api("com.github.xmrafonso:hangar4j:1.2.2")
+    api("com.google.code.gson:gson:2.11.0")
 
     testImplementation(platform("org.junit:junit-bom:5.10.0"))
     testImplementation("org.junit.jupiter:junit-jupiter")