crypto: Run the time sensitive tests only on linux.

matrix_sdk_crypto/src/olm/group_sessions/mod.rs

@@ -138,7 +138,7 @@ mod test {
     use crate::ReadOnlyAccount;
 
     #[tokio::test]
-    #[cfg(not(target_os = "macos"))]
+    #[cfg(target_os = "linux")]
     async fn expiration() {
         let settings = EncryptionSettings {
             rotation_period_msgs: 1,

matrix_sdk_crypto/src/session_manager/sessions.rs

@@ -422,7 +422,7 @@ mod test {
     // This test doesn't run on macos because we're modifying the session
     // creation time so we can get around the UNWEDGING_INTERVAL.
     #[async_test]
-    #[cfg(not(target_os = "macos"))]
+    #[cfg(not(target_os = "linux"))]
     async fn session_unwedging() {
         let manager = session_manager().await;
         let bob = bob_account();