chore: update to latest core and payments protos

[raulriera]

Routine sync from the upstream proto repos, kept as a standalone PR ahead of upcoming feature work.

What came in upstream:

• Chat media's per-message item and rendition types were promoted to a shared blob-level Media type, used identically wherever a surface attaches media
• New SetProfilePicture RPC, a profile picture field on user profiles, a profile blob-access scope for fetching other users' picture bytes, and a privacy-metadata rejection reason
• The identity resolver can now look up by user id in addition to phone number
• Stateful swaps: reserve-currency flows gain verified exchange data covering the full amount (swap plus fee), and treasury server parameters

Everything is additive from the client's perspective — nothing references the renamed media types and no exhaustive switches are affected, so no wrapper changes are needed.

Test plan

• App builds
• FlipcashTests and FlipcashCoreTests pass