allow attoparsec-0.14 and base16-bytestring-1.0 to support lts-19.16

The stack.yaml needed to be updated to one that has aeson-2 after
bumping that dependency. And that required supporting newer
versions of attoparsec and base16-bytestring.

I've reviewed the changelogs and tested a build with stack, and the
existing code works ok with those.

aws.cabal

@@ -129,9 +129,9 @@ Library
 
   Build-depends:
                        aeson                >= 2.0.0.0,
-                       attoparsec           >= 0.11    && < 0.14,
+                       attoparsec           >= 0.11    && < 0.15,
                        base                 >= 4.6     && < 5,
-                       base16-bytestring    == 0.1.*,
+                       base16-bytestring    >= 0.1     && < 1.1,
                        base64-bytestring    >= 1.0     && < 1.3,
                        blaze-builder        >= 0.2.1.4 && < 0.5,
                        byteable             == 0.1.*,

stack.yaml

@@ -15,7 +15,7 @@
 # resolver:
 #  name: custom-snapshot
 #  location: "./custom-snapshot.yaml"
-resolver: lts-11.9
+resolver: lts-19.16
 
 # User packages to be built.
 # Various formats can be used as shown in the example below.