Install missing deps in ci image

tests requiring libmodulemd are skipped due to missing deps and
this patch could fix the issue.

Signed-off-by: Haibo Lin <hlin@redhat.com>

tests/Dockerfile-test

@@ -7,10 +7,12 @@ LABEL \
 
 RUN dnf -y update && dnf -y install \
         findutils \
+        libmodulemd \
         git \
         koji \
         make \
         python3-createrepo_c \
+        python3-gobject-base \
         python3-tox \
         python3-urlgrabber \
     && dnf clean all

tests/Dockerfile-test-py2

@@ -5,13 +5,15 @@ LABEL \
     vendor="Pungi developers" \
     license="MIT"
 
-RUN yum -y update && yum -y install \
+RUN yum -y update && yum -y install epel-release && yum -y install \
         git \
+        libmodulemd2 \
         make \
         python3 \
+        python-createrepo_c \
+        python-gobject-base \
         python-gssapi \
         python-libcomps \
-        python-createrepo_c \
         pykickstart \
     && yum clean all