Log failures to load tree-sitter parsers as error

[the-mikedavis]

Info logs don't show up in the log file by default, but this line should: failures to load tree-sitter parser objects are useful errors. A parser might fail to load it is misconfigured (https://github.com/helix-editor/helix/pull/4303#discussion_r996448543) or if the file does not exist.