updated text-icu ver to be compatible with icu68+ (#565)

plfa.cabal

@@ -41,10 +41,10 @@ library
                   , Hakyll.Web.Sass
                   , Hakyll.Web.Routes.Permalink
   build-depends:    Agda               ==2.6.1.1
-                  , hsass              >=0.8  && <0.9
-                  , regex-tdfa         >=1.3  && <1.4
-                  , text-icu           >=0.7  && <0.8
-                  , text-regex-replace >=0.1  && <0.2
+                  , hsass              >=0.8   && <0.9
+                  , regex-tdfa         >=1.3   && <1.4
+                  , text-icu           >=0.7.1 && <0.8
+                  , text-regex-replace >=0.1   && <0.2
 
 executable site
   import:           shared-properties

stack.yaml

@@ -14,6 +14,7 @@ extra-deps:
 - hlibsass-0.1.10.1@sha256:08db56c633e9a83a642d8ea57dffa93112b092d05bf8f3b07491cfee9ee0dfa5,2565
 # Agda dependencies:
 - Agda-2.6.1.1@sha256:d0f5051ae56de8417dc202cd7a8e23c9f21a75c69b44afb856b66b87ca8d54c4,32315
+- text-icu-0.7.1.0
 - data-hash-0.2.0.1@sha256:0277d99cb8b535ecc375c59e55f1c91faab966d9167a946ef18445dd468ba727,1135
 - equivalence-0.3.5@sha256:aedbd070b7ab5e58dd1678cd85607bc33cb9ff62331c1fa098ca45063b3072db,1626
 - geniplate-mirror-0.7.7@sha256:6a698c1bcec25f4866999001c4de30049d4f8f00ec83f8930cda2f767489c637,1106