function py_source_escape seems cannot escape backslash

[zhyzky]

Enviroment: windows 11 Nvim version 0.10.2

In function py_source_escape Change line string.gsub(src, [[\\]], [[\\\\]]) to

local function py_source_escape(src)
	local dst = string.gsub(src, [[\]], [[\\]])
	dst = string.gsub(dst, [[\t]], [[\\t]])
	dst = string.gsub(dst, '"', [[\\"]])
	return dst
end

seems work.