provide curl in dev shell

GCC is provided in dev shell. External `curl` is incompatible with dev shell-provided GCC, resulting in `GLIBC`
error. Solution is for dev shell to provide both GCC and `curl`.

Author: peterbecich

flake.nix

@@ -61,6 +61,8 @@
             pkgs.haskellPackages.cabal-install
             # Dependencies needed to build some parts of Hackage
             gmp zlib ncurses
+            # for compatibility of curl with provided gcc
+            curl
             # Changelog tooling
             (gen-hls-changelogs pkgs.haskellPackages)
             # For the documentation