Update dependency homebrew/plantuml to v1.2026.0

Author: renovate[bot]

cli/Dockerfile

@@ -10,7 +10,7 @@ FROM eclipse-temurin:21.0.9_10-jre
 
 LABEL org.opencontainers.image.source="https://github.com/zeldigas/text2confl"
 
-ARG PLANTUML="1.2025.10"
+ARG PLANTUML="1.2026.0"
 
 ADD https://github.com/plantuml/plantuml/releases/download/v$PLANTUML/plantuml.jar /usr/local/bin/plantuml.jar
 ADD scripts/plantuml /usr/local/bin/plantuml