Update net.thenextlvl.core dependency version

This commit updates the net.thenextlvl.core dependency from version 1.5.1 to 1.5.2 in the build script. This update likely includes important bug fixes or improvements. Ensure compatibility and test thoroughly after this change.

plugin/build.gradle.kts

@@ -40,7 +40,7 @@ dependencies {
     compileOnly("net.luckperms:api:5.4")
 
     implementation("com.github.MilkBowl:VaultAPI:1.7.1")
-    implementation("net.thenextlvl.core:paper:1.5.1")
+    implementation("net.thenextlvl.core:paper:1.5.2")
     implementation("org.bstats:bstats-bukkit:3.1.0")
 
     implementation(rootProject)