Update Sodium Compat to 1.20.0

[jrf]

Sodium_Compat 1.20.0 has just been released and fixes a pertinent, though rare bug.

The version included with WP should be updated.

Full details:

• ​https://github.com/paragonie/sodium_compat/releases/tag/v1.20.0
• ​https://github.com/paragonie/sodium_compat/compare/v1.19.0...v1.20.0

I've reviewed the diff and would recommend an update at the earliest convenience.

Previously: #48371, #51399, #51925, #53274, #53907, #55453, #56564, #56642, #56653

[paragoninitiativeenterprises]

Feel free to exclude the wycheproof test commits when deriving the patch from our release diff. (I made them separate commits so they can more easily be skipped.)

[jrf]

Thanks for the heads-up @paragoninitiativeenterprises ! If I remember correctly, we don't actually include the tests in the patches which go into WP Core, just the src files.

The latest version of sodium_compat includes a fix for the Poly1305 implementation.

Release Notes:
​https://github.com/paragonie/sodium_compat/releases/tag/v1.20.0

A full list of changes in this update can be found on GitHub:
​https://github.com/paragonie/sodium_compat/compare/v1.19.0...v1.20.0

Trac ticket: https://core.trac.wordpress.org/ticket/58224

[costdev]

​PR 4400 updates sodium_compat to 1.20.0.

[jrf]

Thanks @costdev for creating a patch. The patch on GitHub has been reviewed and approved (x3).

[SergeyBiryukov]

In 55699:

Upgrade/Install: Update sodium_compat to v1.20.0.

The latest version of sodium_compat includes a fix for the Poly1305 implementation.

References:

• ​sodium_compat 1.20.0 release notes
• ​Full list of changes in sodium_compat 1.20.0

Follow-up to [49741], [51002], [51591], [52988], [54150], [54310].

Props jrf, costdev, paragoninitiativeenterprises, mukesh27.
Fixes #58224.

Thanks for the PR! Merged in r55699.