Bump io.ktor.plugin from 2.3.12 to 3.0.0

Bumps io.ktor.plugin from 2.3.12 to 3.0.0.

---
updated-dependencies:
- dependency-name: io.ktor.plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle.kts

@@ -31,7 +31,7 @@ fun environment(key: String) = providers.environmentVariable(key)
 plugins {
     id("java") // Java support
     // from https://github.com/ktorio/ktor-samples/blob/main/sse/build.gradle.kts
-    id("io.ktor.plugin") version "2.3.12"
+    id("io.ktor.plugin") version "3.0.0"
     alias(libs.plugins.kotlin) // Kotlin support
     alias(libs.plugins.gradleIntelliJPlugin) // Gradle IntelliJ Plugin
     alias(libs.plugins.changelog) // Gradle Changelog Plugin