pandoc-lua-engine: allow citeproc 0.12.

Author: jgm

pandoc-lua-engine/pandoc-lua-engine.cabal

@@ -111,7 +111,7 @@ library
   build-depends:       aeson
                      , bytestring            >= 0.9     && < 0.13
                      , crypton               >= 0.30    && < 1.1
-                     , citeproc              >= 0.8     && < 0.12
+                     , citeproc              >= 0.8     && < 0.13
                      , containers            >= 0.6.0.1 && < 0.9
                      , data-default          >= 0.4     && < 0.9
                      , doclayout             >= 0.5     && < 0.6