dependency: Update dependency org.jetbrains.kotlin:kotlin-stdlib-jdk8 to v2.3.20 (#1323)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

buildSrc/build.gradle.kts

@@ -8,7 +8,7 @@ repositories {
 
 dependencies {
     implementation("com.gradleup.shadow:shadow-gradle-plugin:9.4.0")
-    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:2.3.10")
+    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:2.3.20")
     implementation("net.minecrell:plugin-yml:0.6.0")
     implementation("com.modrinth.minotaur:Minotaur:2.9.0")
     implementation("io.papermc.hangar-publish-plugin:io.papermc.hangar-publish-plugin.gradle.plugin:0.1.4")