Bump JLine to 4.4.6, drop JNI backend as Paper compiles to Java 25

[WouterGritter]

Supersedes #14056

See #14056 (comment)

[papermc-pr-publishing]

Last updated for: cf2ff307e7e629fbb8e49e63b6a2ff936a456bd0.

Download the Paperclip jar for this pull request: paper-14323.zip

Maven Publication

The artifacts published by this PR:

• 📦 io.papermc.paper:dev-bundle:26.3.local-SNAPSHOT
• 📦 io.papermc.paper:paper-api:26.3.local-SNAPSHOT

Repository Declaration

In order to use the artifacts published by the PR, add the following repository to your buildscript:

repositories {
    maven("https://maven-prs.papermc.io/Paper/pr14323") {
        name = "Maven for PR #14323" // https://github.com/PaperMC/Paper/pull/14323
        mavenContent {
            includeModule("io.papermc.paper", "dev-bundle")
            includeModule("io.papermc.paper", "paper-api")
        }
    }
}