Failing AXE tests

I used the tool axe to scan this autocomplete and got the following errors.

    Expected page to pass Axe accessibility tests.
    Violations found:
    Rule: "aria-input-field-name" (ARIA input fields have an accessible name)
    Help: https://dequeuniversity.com/rules/axe/3.3/aria-input-field-name?application=axe-puppeteer
    Affected Nodes:
      #amp-stories-font-family-picker-1__listbox
        Fix ANY of the following:
        - aria-label attribute does not exist or is empty
        - aria-labelledby attribute does not exist, references elements that do not exist or references elements that are empty
        - Element has no title attribute or the title attribute is empty
    
    Rule: "aria-required-children" (Certain ARIA roles must contain particular children)
    Help: https://dequeuniversity.com/rules/axe/3.3/aria-required-children?application=axe-puppeteer
    Affected Nodes:
      #amp-stories-font-family-picker-1__listbox
        Fix ANY of the following:
        - Required ARIA child role not present: option

[sussexrick]

@bentpr @vrojastpr Let’s use @JakeChampion’s package and create PRs there for any bugfix we do, rather than publish our own package to npm.

[sussexrick]

For anyone finding this, PR #500 fixes “aria-input-field-name” (ARIA input fields have an accessible name).