Add renovate to pandoc

pandoc.sls

@@ -1,10 +1,16 @@
+{%- load_yaml as versions %}
+# renovate: datasource=github-releases depName=pandoc packageName=jgm/pandoc
+- 1.17.0.2
+{%- endload%}
 pandoc:
-  '1.17.0.2':
-    full_name: 'Pandoc 1.17.0.2'
-    installer: 'https://github.com/jgm/pandoc/releases/download/1.17.0.2/pandoc-1.17.0.2-windows.msi'
+  {%- for version in versions %}
+  '{{ version }}':
+    full_name: 'Pandoc {{ version }}'
+    installer: 'https://github.com/jgm/pandoc/releases/download/{{ version }}/pandoc-{{ version }}-windows.msi'
     install_flags: '/qn ALLUSERS=1 /norestart'
-    uninstaller: 'https://github.com/jgm/pandoc/releases/download/1.17.0.2/pandoc-1.17.0.2-windows.msi'
+    uninstaller: 'https://github.com/jgm/pandoc/releases/download/{{ version }}/pandoc-{{ version }}-windows.msi'
     uninstall_flags: '/qn /norestart'
     msiexec: True
     locale: en_US
     reboot: False
+  {%- endfor %}