Bump lower bound of hslua

The release hslua 0.9.3 contains a new function which makes using
Haskell functions as package loaders much easier.

pandoc.cabal

@@ -328,7 +328,7 @@ library
                  yaml >= 0.8.8.2 && < 0.9,
                  scientific >= 0.2 && < 0.4,
                  vector >= 0.10 && < 0.13,
-                 hslua >= 0.9 && < 0.10,
+                 hslua >= 0.9.3 && < 0.10,
                  hslua-module-text >= 0.1.2 && < 0.2,
                  binary >= 0.5 && < 0.10,
                  SHA >= 1.6 && < 1.7,

stack.pkg.yaml

@@ -14,7 +14,7 @@ packages:
 - '.'
 extra-deps:
 - pandoc-types-1.17.3
-- hslua-0.9.2
+- hslua-0.9.3
 - hslua-module-text-0.1.2
 - skylighting-0.4.4.1
 - texmath-0.10

stack.yaml

@@ -8,7 +8,7 @@ packages:
 - '.'
 extra-deps:
 - pandoc-types-1.17.3
-- hslua-0.9.2
+- hslua-0.9.3
 - hslua-module-text-0.1.2
 - skylighting-0.4.4.1
 - texmath-0.10