update: add pandoc version v3.6.4 (#2317)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pandoc.sls

@@ -1,5 +1,6 @@
 {% load_yaml as versions -%}
 # renovate: datasource=github-releases depName=pandoc packageName=jgm/pandoc
+- '3.6.4'
 - '3.6.3'
 - '3.6.2'
 - '3.6.1'