Support fourmolu 0.11 (haskell#3533)

Co-authored-by: Michael Peyton Jones <[email protected]>

plugins/hls-fourmolu-plugin/hls-fourmolu-plugin.cabal

@@ -31,7 +31,7 @@ library
   build-depends:
     , base            >=4.12 && <5
     , filepath
-    , fourmolu        ^>=0.3 || ^>=0.4 || ^>= 0.6 || ^>= 0.7 || ^>= 0.8 || ^>= 0.9 || ^>= 0.10
+    , fourmolu        ^>=0.3 || ^>=0.4 || ^>= 0.6 || ^>= 0.7 || ^>= 0.8 || ^>= 0.9 || ^>= 0.10 || ^>= 0.11
     , ghc
     , ghc-boot-th
     , ghcide          ^>= 1.9