feat: add http parser

All credit goes to @NTBBloodbath.

See: https://github.com/NTBBloodbath/rest.nvim/issues/75#issuecomment-960447966

Co-authored-by: NTBBloodbath <bloodbathalchemist@protonmail.com>

lua/nvim-treesitter/parsers.lua

@@ -762,6 +762,15 @@ list.llvm = {
   maintainers = { "@benwilliamgraham" },
 }
 
+list.http = {
+  install_info = {
+    url = "https://github.com/NTBBloodbath/tree-sitter-http",
+    branch = "main",
+    files = { "src/parser.c" },
+  },
+  maintainers = { "@NTBBloodbath" },
+}
+
 local M = {
   list = list,
 }