add CBOR support to database schema

Signed-off-by: Jason Volk <jason@zemos.net>

src/database/Cargo.toml

@@ -40,6 +40,8 @@ conduwuit-core.workspace = true
 const-str.workspace = true
 futures.workspace = true
 log.workspace = true
+minicbor.workspace = true
+minicbor-serde.workspace = true
 rust-rocksdb.workspace = true
 serde.workspace = true
 serde_json.workspace = true