fix metadata extraction with missing dependencies

klipper/Dockerfile

@@ -40,7 +40,15 @@ ARG DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update && \
     apt-get upgrade -y && \
-    apt-get install git gcc locales supervisor libjpeg62-turbo libtiff5 -y && \
+    apt-get install -y \
+    git \
+    gcc \
+    locales \
+    supervisor \
+    libjpeg62-turbo \
+    libtiff5 \
+    gpiod \
+    libopenjp2-7 && \
     sed -i -e 's/# en_GB.UTF-8 UTF-8/en_GB.UTF-8 UTF-8/' /etc/locale.gen && \
     locale-gen && \
     # Clean up
@@ -68,7 +76,7 @@ RUN useradd --user-group --no-log-init --shell /bin/false ${USER} && \
     usermod -a -G dialout ${USER} && \
     mkdir -p /var/log/supervisor && \
     mkdir -p /var/log/klipper && chown ${USER}:${USER} /var/log/klipper && \
-    pip install --no-cache supervisord-dependent-startup
+    pip install --no-cache supervisord-dependent-startup gpiod
 
 USER ${USER}
 WORKDIR ${HOME}