[PATCH 1 of 2] Run yum commands silently

[Wald Commits]

# HG changeset patch
# User Tom Gottfried <tom at intevation.de>
# Date 1658487431 -7200
#      Fri Jul 22 12:57:11 2022 +0200
# Branch 3.2.x
# Node ID a6c6bba0fc4ba086b01eaed4fde7afc43b1f2fd8
# Parent  1dfcbb09c231cdc8711310de639ea00f7ed13a80
Run yum commands silently

diff -r 1dfcbb09c231 -r a6c6bba0fc4b docker/Dockerfile.artifacts
--- a/docker/Dockerfile.artifacts	Fri Jul 15 16:24:56 2022 +0200
+++ b/docker/Dockerfile.artifacts	Fri Jul 22 12:57:11 2022 +0200
@@ -5,10 +5,10 @@
 
 # Necessary to run further yum-installs inside Docker container,
 # if not already part of the base image:
-RUN yum -y install yum-plugin-ovl && rpm --rebuilddb
+RUN yum -q -y install yum-plugin-ovl && rpm --rebuilddb
 
 # Install prerequisites
-RUN yum -y install maven mercurial curl
+RUN yum -q -y install maven mercurial curl
 
 # Add DEMs from demo dataset
 ENV DEM_DIR /opt/d4e-river/dgm
diff -r 1dfcbb09c231 -r a6c6bba0fc4b docker/Dockerfile.gwt-client
--- a/docker/Dockerfile.gwt-client	Fri Jul 15 16:24:56 2022 +0200
+++ b/docker/Dockerfile.gwt-client	Fri Jul 22 12:57:11 2022 +0200
@@ -5,10 +5,10 @@
 
 # Necessary to run further yum-installs inside Docker container,
 # if not already part of the base image:
-RUN yum -y install yum-plugin-ovl && rpm --rebuilddb
+RUN yum -q -y install yum-plugin-ovl && rpm --rebuilddb
 
 # Install prerequisites
-RUN yum -y install maven mercurial tomcat gnu-free-sans-fonts curl
+RUN yum -q -y install maven mercurial tomcat gnu-free-sans-fonts curl
 
 WORKDIR /opt/d4e
 ENV REPO_URL https://scm.wald.intevation.org/hg/dive4elements/