MB-69335: Use key based key derivation by default

Change-Id: Ibd4cf557da0d41ea1ece9079ea95377af26a04a3
Reviewed-on: https://review.couchbase.org/c/platform/+/239152
Tested-by: Build Bot <build@couchbase.com>
Reviewed-by: Trond Norbye <trond.norbye@couchbase.com>

Author: pavlosg

include/cbcrypto/common.h

@@ -49,7 +49,7 @@ struct KeyDerivationKey {
                      Cipher cipher,
                      std::string derivationKey,
                      KeyDerivationMethod derivationMethod =
-                             KeyDerivationMethod::NoDerivation)
+                             KeyDerivationMethod::KeyBased)
         : id(std::move(id)),
           derivationKey(std::move(derivationKey)),
           cipher(cipher),