D'oh. Pull debian Prince instead of ubuntu

Dockerfile

@@ -3,10 +3,10 @@ FROM jenkins/inbound-agent:latest-trixie-jdk17 AS jnlp
 # USER jenkins
 USER root
 RUN apt-get update && \
-  apt-get -y install ca-certificates curl libjpeg-turbo pkg-config python3.13 python3.13-venv python3-dev python3-pip \
-     python3-setuptools && \
+  apt-get -y install ca-certificates curl pkg-config python3-dev python3-pip \
+     python3-setuptools python3.13 python3.13-venv && \
   apt -y install gdebi && \
-  curl -O https://www.princexml.com/download/prince_16.1-1_ubuntu24.04_amd64.deb && \
+  curl -O https://www.princexml.com/download/prince_20251030-1_debian13_amd64.deb && \
   gdebi --n ./prince_16.1-1_ubuntu24.04_amd64.deb && \
   apt-get clean && \
   rm -rf /var/lib/apt/lists/* /var/cache/apt/archives/*