Add basedpyright langserver (#11121)

languages.toml

@@ -73,6 +73,7 @@ prisma-language-server = { command = "prisma-language-server", args = ["--stdio"
 purescript-language-server = { command = "purescript-language-server", args = ["--stdio"] }
 pylsp = { command = "pylsp" }
 pyright = { command = "pyright-langserver", args = ["--stdio"], config = {} }
+basedpyright = { command = "basedpyright-langserver", args = ["--stdio"], config = {} }
 pylyzer = { command = "pylyzer", args = ["--server"] }
 qmlls = { command = "qmlls" }
 r = { command = "R", args = ["--no-echo", "-e", "languageserver::run()"] }