1.6.1.0

This is a bug fix release to restore a fully statically linked haskell-language-server-wrapper executable.

• It has been reported here
  • Thanks all reporters for the fast feedback
• The bug has been traced here
• And the fix is in this pr

Pull requests merged for 1.6.0

• Post 1.6.0.0 fixes and prepare 1.6.1.0 bug fix release
  (#2647) by @jneira- Move hackage back to flake.nix
  (#2652) by @guibou
• Wingman: Fix #1879
  (#2644) by @MorrowM