databases/couchdb3: update to 3.4.2, resolve PR282217

- include QuickJS engine
- support xxHash for data integrity checksums
- improved mango keys-only indexes
- https://blog.couchdb.org/2024/10/22/3-4-2/
- https://docs.couchdb.org/en/stable/whatsnew/3.4.html

- ensure snappy NIF is compiled without optimisations to avoid
    corrupted documents under newer clang versions, used in
    in 14.1-RELEASE (see PR282217 for details)

Sponsored by:	SkunkWerks, GmbH

PR:		282217