[Bug] can't use meridiem(meridiem is not a function)

**Describe the bug**
When I use `dayjs().localeData().meridiem()` it returns an error with the following message and can't use the function.
`Uncaught TypeError: dayjs(...).localeData(...).meridiem is not a function`


**Expected behavior**
Should return a string based on the current locale.

**Information**
- Day.js Version v1.11.13
- OS: Windows
- Browser Chrome 131.0.6778.205
- Time zone: GMT+3

Start by reproducing the error with dayjs().localeData().meridiem() on Day.js v1.11.13 and inspect the localeData API and locale handling. Done means the call returns a string based on the current locale without throwing a TypeError.

Written by the indexing model from the issue text.