test: modernize pdfbox example

Bump version to 3.0.3 and use the release chisel.
Note: had to add workaround due the missing CA certificate:

wget https://mirror.math.princeton.edu/pub/CTAN/fonts/opensans/type1/
--2024-09-17 15:05:03--  https://mirror.math.princeton.edu/pub/CTAN/fonts/opensans/type1/
Resolving mirror.math.princeton.edu (mirror.math.princeton.edu)... 128.112.18.21
Connecting to mirror.math.princeton.edu (mirror.math.princeton.edu)|128.112.18.21|:443... connected.
ERROR: cannot verify mirror.math.princeton.edu's certificate, issued by ‘CN=InCommon RSA Server CA 2,O=Internet2,C=US’:
  Unable to locally verify the issuer's authority.
To connect to mirror.math.princeton.edu insecurely, use `--no-check-certificate'.

tests/pdfbox/Dockerfile

@@ -4,39 +4,26 @@ ARG USER=app
 ARG UID=101
 ARG GROUP=app
 ARG GID=101
-
-FROM golang:1.22 AS chisel
-ARG UBUNTU_RELEASE
-RUN git clone --depth 1 -b ubuntu-22.04 https://github.com/canonical/chisel-releases /opt/chisel-releases \
-    && git clone --depth 1 -b main https://github.com/canonical/chisel /opt/chisel
-WORKDIR /opt/chisel
-RUN go generate internal/deb/version.go \
-    && go build ./cmd/chisel
+ARG CHISEL_VERSION=0.10.0
+ARG TARGETARCH=amd64
 
 FROM public.ecr.aws/ubuntu/ubuntu:$UBUNTU_RELEASE@sha256:1582c29f34a48752e406f1a261fe9545fad895da3f6bb4be55bc82485557564e AS builder
-SHELL ["/bin/bash", "-oeux", "pipefail", "-c"]
+ARG CHISEL_VERSION
+ARG TARGETARCH
 RUN apt-get update \
     && DEBIAN_FRONTEND=noninteractive apt-get install -y ca-certificates \
-        ca-certificates-java \
     && apt-get clean -y \
     && rm -rf /var/lib/apt/lists/*
-COPY --from=chisel /opt/chisel/chisel /usr/bin/
-
-### BOILERPLATE END ###
 
-FROM builder AS sliced-deps
-ARG USER
-ARG UID
-ARG GROUP
-ARG GID
 SHELL ["/bin/bash", "-oeux", "pipefail", "-c"]
-COPY --from=chisel /opt/chisel-releases /opt/chisel-releases
+ADD https://github.com/canonical/chisel/releases/download/v${CHISEL_VERSION}/chisel_v${CHISEL_VERSION}_linux_${TARGETARCH}.tar.gz chisel.tar.gz
+RUN tar -xvf chisel.tar.gz -C /usr/bin/
 RUN mkdir -p /rootfs \
-      && chisel cut --release /opt/chisel-releases --root /rootfs \
+      && chisel cut --root /rootfs \
         liblcms2-2_libs \
         libfontconfig1_libs \
         libfreetype6_libs \
         libjpeg-turbo8_libs
 
 FROM $MAVEN_IMAGE
-COPY --from=sliced-deps /rootfs /
+COPY --from=builder /rootfs /

tests/pdfbox/runtest

@@ -17,7 +17,7 @@ if [ -z $M2_CACHE ]; then
 fi
 
 PDFBOX_REPO=https://github.com/vpa1977/pdfbox
-VERSION=3.0.0-alpha3
+VERSION=3.0.3
 APP=pdfbox
 TEST_DIR=`pwd`