build: upgrade ESLint core to v9 (gh54 part VI)#10972

Planeshifter wants to merge 1 commit intophilipp/gh54-flat-configstdlib-js/stdlib:philipp/gh54-flat-configfrom

philipp/gh54-eslint-v9stdlib-js/stdlib:philipp/gh54-eslint-v9Copy head branch name to clipboard