Update plugin plantuml to v8.14

Author: renovate[bot]

gradle/libs.versions.toml

@@ -108,6 +108,6 @@ jreleaser = { id = "org.jreleaser", version = "1.18.0" }
 kotlin = { id = "org.jetbrains.kotlin.jvm", version = "2.2.0-RC3" }
 nullaway = { id = "net.ltgt.nullaway", version = "2.2.0" }
 openrewrite = { id = "org.openrewrite.rewrite", version = "7.8.0" }
-plantuml = { id = "io.freefair.plantuml", version = "8.13.1" }
+plantuml = { id = "io.freefair.plantuml", version = "8.14" }
 shadow = { id = "com.gradleup.shadow", version = "8.3.6" }
 spotless = { id = "com.diffplug.spotless", version = "7.0.4" }