ci: fix main.yml YAML (quote step names containing ': ') - #330

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

function `check_i18n_layout` is never used

field `0` is never read

fields `request_ids`, `width`, and `height` are never read

fields `request_id` and `dump` are never read

fields `window_id`, `window_index`, `value`, `checked`, and `selected` are never read

variants `Scroll`, `TextInput`, and `WidgetTreeDump` are never constructed

associated function `parse` is never used

multiple variants are never constructed

variant `Critical` is never constructed

methods `mouse_move`, `type_text`, and `scroll` are never used

function `check_i18n_layout` is never used

field `0` is never read

fields `request_ids`, `width`, and `height` are never read

fields `request_id` and `dump` are never read

fields `window_id`, `window_index`, `value`, `checked`, and `selected` are never read

variants `Scroll`, `TextInput`, and `WidgetTreeDump` are never constructed

associated function `parse` is never used

multiple variants are never constructed

variant `Critical` is never constructed