added --fix-missing to the perl packages

fhem/Dockerfile

@@ -25,7 +25,7 @@ vim \
 wget
 
 # Install perl packages
-RUN apt-get -y --force-yes install \
+RUN apt-get -y --force-yes --fix-missing install \
 libalgorithm-merge-perl \
 libauthen-oath-perl \
 libavahi-compat-libdnssd-dev \