Bump kotlin.version from 2.1.20 to 2.1.21#817

javadev merged 1 commit intomainjavadev/LeetCode-in-Kotlin:mainfrom

dependabot/maven/kotlin.version-2.1.21javadev/LeetCode-in-Kotlin:dependabot/maven/kotlin.version-2.1.21Copy head branch name to clipboard