Fixup cabal file

Author: ali-abrar

postgresql-simple-interpolate.cabal

@@ -10,7 +10,7 @@ copyright: ©2019 Elliot Cameron
 homepage: https://github.com/3noch/postgresql-simple-interpolate
 category: Database
 build-type: Simple
-cabal-version: >=1.8
+cabal-version: >=1.10
 
 source-repository head
   type: git
@@ -29,6 +29,7 @@ library
     postgresql-simple >= 0.1,
     template-haskell
   ghc-options: -Wall -O2
+  default-language: Haskell2010
 
 benchmark criterion
     hs-source-dirs: benchmarks