encryptionClient uses writeConcern majority (#1858)

Co-authored-by: Almas Abdrazak <abdrazak.almas@mongodb.com>

Author: strogiyotec

driver-sync/src/test/functional/com/mongodb/client/AbstractClientSideEncryptionDecryptionEventsTest.java

@@ -24,6 +24,7 @@
 import com.mongodb.MongoClientSettings;
 import com.mongodb.MongoCommandException;
 import com.mongodb.MongoSocketReadException;
+import com.mongodb.WriteConcern;
 import com.mongodb.client.model.Aggregates;
 import com.mongodb.client.model.vault.EncryptOptions;
 import com.mongodb.client.vault.ClientEncryption;
@@ -106,6 +107,7 @@ public void setUp() {
                                 .kmsProviders(kmsProviders)
                                 .build())
                 .retryReads(false)
+                .writeConcern(WriteConcern.MAJORITY)
                 .addCommandListener(commandListener)
                 .build());
     }