is-valid-autocomplete should allow one-time-code as a standalone term

[lencioni]

Expectation: <input type="text" autocomplete="one-time-code" /> should be allowed

Actual: It is flagged as invalid

Motivation: This autocomplete value can be used by some browsers to automatically fill in the value after receiving a one-time-code for 2-factor authentication. More info:

• Add autocomplete=one-time-code. Fixes whatwg/html#3745 whatwg/html#4573
• https://developer.apple.com/documentation/security/password_autofill/enabling_password_autofill_on_an_html_input_element
• https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/autocomplete#Values
• https://www.twilio.com/blog/html-attributes-two-factor-authentication-autocomplete

axe-core version: 3.5.5
axe-webdriver, extension or other integration version: eslint-plugin-jsx-a11y@6.3.0

Browser and Assistive Technology versions

For Tooling issues:
- Node version: 10.16.0  
- Platform: Mac 

[padmavemulapati]

Verified with the changes, <input type="text" autocomplete="one-time-code" /> allowing me to enter the values in textbox, also its not failing with input type , but showing failure for there is no label defined for the input type
used test code is : <input type="text" autocomplete="one-time-code" />