npm自体のバージョンを上げる方法

結論

npm install -g npm する

$ npm -v
8.11.0
$ npm install -g npm
npm WARN config global `--global`, `--local` are deprecated. Use `--location=global` instead.

removed 8 packages, changed 84 packages, and audited 231 packages in 1s

14 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities
Reshimming asdf nodejs...