feat(rocks): use hererocks to install luarocks when luarocks is not found

lua/lazy/pkg/init.lua

@@ -112,6 +112,32 @@ local function _load()
   Util.track()
 end
 
+---@return LazyPluginSpec?, string?
+function M.hererocks()
+  if not (Config.options.rocks.enabled and Config.options.rocks.hererocks) then
+    return
+  end
+
+  local root = Config.options.rocks.root .. "/hererocks"
+
+  local cmd = {
+    "python",
+    "hererocks.py",
+    "--verbose",
+    "-l",
+    "5.1",
+    "-r",
+    "latest",
+    root,
+  }
+
+  return {
+    "luarocks/hererocks",
+    lazy = true,
+    build = table.concat(cmd, " "),
+  }, root
+end
+
 ---@param dir string
 ---@return LazyPkg?
 ---@overload fun():LazyPkg[]