[Pagination] components page number is not formated according to i18n

[johannes-darms]

Describe the bug
The pagination component does not use i18n formatting for page numbers.

Impact and severity
This is not a really big issue for users, but also a small change to improve pagination with large number of pages.

Environment and versions

• EUI version: v99.9

To Reproduce
cf. screenshot and snippet below (also active on the documentation page: https://eui.elastic.co/#/navigation/pagination )

Expected behavior
Use i18n formatted values for pages. https://github.com/elastic/eui/blob/main/packages/eui/src/components/pagination/pagination_button.tsx#L35

Minimum reproducible sandbox

<EuiPagination
  pageCount={27000000000000}
  activePage={480000000000}
  />

Screenshots