Install rsvg in ci script

Change-Id: I2663bf6432383614313a41f486b98f386ad1bae9
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ff6a90d..a13f384 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -23,7 +23,7 @@
 
     - start_section install_linux_packages "Installing missing Linux packages"
     - apt-get update
-    - apt-get install -y libvulkan1 libu2f-udev fonts-liberation build-essential libglpk40 libcurl4-gnutls-dev libxml2-dev libsodium-dev libsecret-1-dev libfontconfig1-dev libssl-dev libxt6 libpq-dev imagemagick ghostscript  inkscape scour poppler-utils
+    - apt-get install -y libvulkan1 libu2f-udev fonts-liberation build-essential libglpk40 libcurl4-gnutls-dev libxml2-dev libsodium-dev libsecret-1-dev libfontconfig1-dev libssl-dev libxt6 libpq-dev imagemagick ghostscript  inkscape scour poppler-utils librsvg2-dev
     - wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
     - dpkg -i google-chrome-stable_current_amd64.deb || apt-get install -y -f
     - locale-gen de_DE.utf8 en_GB.utf8 en_US.utf8
@@ -41,7 +41,7 @@
     - end_section install_fonts
 
     - start_section install_r_packages "Installing missing R packages"
-    - R -e "install.packages(c('devtools', 'RKorAPClient', 'httr', 'tidytext', 'httpuv', 'scales', 'sp', 'raster', 'kableExtra', 'DT', 'svglite', 'qrcode'))"
+    - R -e "install.packages(c('devtools', 'RKorAPClient', 'httr', 'tidytext', 'httpuv', 'scales', 'sp', 'raster', 'kableExtra', 'DT', 'svglite', 'qrcode', 'rsvg'))"
     - R -e 'devtools::install_git("https://korap.ids-mannheim.de/gerrit/IDS-Mannheim/idsThemeR")'
     - R -e 'devtools::install_git("https://korap.ids-mannheim.de/gerrit/IDS-Mannheim/posterdown")'
     - end_section install_r_packages