restore TemplateHaskell pragma

not 9.2 specific, but required for file_embed flag

Author: pepeiborra

hls-graph/src/Development/IDE/Graph/Internal/Profile.hs

@@ -1,5 +1,6 @@
 {-# LANGUAGE CPP             #-}
 {-# LANGUAGE RecordWildCards #-}
+{-# LANGUAGE TemplateHaskell #-}
 {-# LANGUAGE ViewPatterns    #-}
 
 {- HLINT ignore "Redundant bracket" -} -- a result of CPP expansion