Export GossipRequest

The `matrix-sdk-store::CryptoStore` uses the type in its definition,
so we export it to allow third party implementations.

crates/matrix-sdk-crypto/src/store/mod.rs

@@ -69,7 +69,7 @@ use zeroize::Zeroize;
 pub use self::sled::SledStore;
 use crate::{
     error::SessionUnpicklingError,
-    gossiping::{GossipRequest, SecretInfo},
+    gossiping::SecretInfo,
     identities::{
         user::{OwnUserIdentity, UserIdentities, UserIdentity},
         Device, ReadOnlyDevice, ReadOnlyUserIdentities, UserDevices,
@@ -85,6 +85,8 @@ use crate::{
 /// A `CryptoStore` specific result type.
 pub type Result<T, E = CryptoStoreError> = std::result::Result<T, E>;
 
+pub use crate::gossiping::GossipRequest;
+
 /// A wrapper for our CryptoStore trait object.
 ///
 /// This is needed because we want to have a generic interface so we can