Update pandoc-citeproc and skylighting versions.

cabal.project

@@ -11,4 +11,4 @@ package pandoc-citeproc
 source-repository-package
     type: git
     location: https://github.com/jgm/pandoc-citeproc
-    tag: 0.16.1.3
+    tag: 0.16.2

pandoc.cabal

@@ -389,7 +389,7 @@ library
                  tagsoup >= 0.14.6 && < 0.15,
                  base64-bytestring >= 0.1 && < 1.1,
                  zlib >= 0.5 && < 0.7,
-                 skylighting >= 0.8 && < 0.9,
+                 skylighting >= 0.8.1 && < 0.9,
                  data-default >= 0.4 && < 0.8,
                  temporary >= 1.1 && < 1.4,
                  blaze-html >= 0.9 && < 0.10,

stack.yaml

@@ -17,8 +17,8 @@ extra-deps:
 - hslua-1.0.3.1
 - hslua-module-system-0.2.0
 - tasty-lua-0.2.0
-- skylighting-core-0.8
-- skylighting-0.8
+- skylighting-core-0.8.1
+- skylighting-0.8.1
 ghc-options:
    "$locals": -Wall -fno-warn-unused-do-bind -Wincomplete-record-updates -Wnoncanonical-monad-instances -Wnoncanonical-monadfail-instances -Wincomplete-uni-patterns -Widentities -Wcpp-undef -fhide-source-paths -Wno-missing-home-modules
 resolver: lts-13.17