FIX: missing dependency

test/docker/Dockerfile

@@ -9,6 +9,8 @@ RUN  apt-get update \
     && apt-get install -y \
       firefox-esr gettext-base python3-pip \
       python3-httpbin git curl x11-apps xvfb unzip \
+      libhdf5-dev \
+      pkgconf \
       nodejs # Don't install `npm` (Debian), it conflicts with the `nodejs` (Node) package \
     && apt-get install -f