tasks: Disable installing recommends

firefox' Recommends pull in mesa and half of a desktop stack (like
tracker, upower, and mesa), and thus adds an unnecessary 600 MB of
dependencies.

Other packages pull in nodejs-full-i18n, various -docs, systemd-networkd
and other bits which have no place in a container.

Explicitly install passwd to keep the container working with toolbox,
and adobe-source-code-pro-fonts to keep a proper monospace font (for
pixel tests).

tasks/Containerfile

@@ -2,8 +2,9 @@ FROM fedora:38
 LABEL maintainer='[email protected]'
 
 RUN dnf -y update && \
-    dnf -y install \
+    dnf -y install --disablerepo=fedora-cisco-openh264 --setopt=install_weak_deps=False \
         'dnf-command(builddep)' \
+        adobe-source-code-pro-fonts \
         byobu \
         chromium-headless \
         curl \
@@ -32,6 +33,7 @@ RUN dnf -y update && \
         net-tools \
         nodejs-devel \
         npm \
+        passwd \
         psmisc \
         procps-ng \
         python3 \