RelativeTime ".past" and ".future" keys does not support function

[drgx]

Describe the bug
As per this documentation, dayjs support additional token processing with the same API as moment js. It will throw an error if I pass past and future a function for additional processing.
For the rest of the relativeTime keys, it works perfectly.

Example of error:

dayjs.updateLocale("en", {
  relativeTime: {
    future: "in %s",
     past: (input) => {
       return "additional processing";
     },
    s: "just now",
    m: " 1 min",
    mm: "%d min",
    h: "1 hr",
    hh: "%d hrs",
    d: "a day",
    dd: "%d days",
    M: "a month",
    MM: "%d months",
    y: "a year",
    yy: "%d years"
  }
});

Can be tested here: https://codesandbox.io/s/dayjs-relativestime-bug-1k2m9?file=/src/index.js

Expected behavior
relativeTime.future and relativeTime.past should support function for additional processing

Information

• Day.js Version 1.9.4, 1.9.5
• OS: macOS
• Browser Version 86.0.4240.183
• Time zone: GMT+7

[iamkun]

🎉 This issue has been resolved in version 1.9.7 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀