Update BBC Reith font

[randombitsUK]

Is your feature request related to a problem? Please describe.
The BBC Reith Font is used across the BBC. To improve the experience of users the version being used should be consistent across all pages.

Describe the solution you'd like
Currently Simorgh is using version r2.512, this should be updated to 2.610.

There should be no changes on screen with this, it just ensures Simorgh uses the latest version.

Describe alternatives you've considered
n/a

Testing notes
[Tester to complete]

Dev insight: Will Cypress tests be required or are unit tests sufficient? Will there be any potential regression? etc

• This feature is expected to need manual testing.

Checklist

• (BBC contributors only) This issue follows the repository use guidelines

Additional context
There are two files (AFAIK) where the version is referenced:
https://github.com/bbc/simorgh/blob/74e61891da3c5cb6d019e71804d22e07c57519f2/src/app/legacy/psammead/README.md?plain=1

simorgh/src/app/components/ThemeProvider/fontFaces.ts

Line 9 in 74e6189

export const REITH_FONTS_DIR = `${REITH_BASE_URL}reith/r2.512/`;

In both cases simply replace reith/r2.512/ with reith/2.610/