Allow network 3.2.

pandoc.cabal

@@ -501,7 +501,7 @@ library
                  jira-wiki-markup      >= 1.5.1    && < 1.6,
                  mime-types            >= 0.1.1    && < 0.2,
                  mtl                   >= 2.2      && < 2.4,
-                 network               >= 2.6      && < 3.2,
+                 network               >= 2.6      && < 3.3,
                  network-uri           >= 2.6      && < 2.8,
                  pandoc-types          >= 1.23.1   && < 1.24,
                  parsec                >= 3.1      && < 3.2,