Make sure we free the ecdsa_key object after we have finished using it.
Reviewed-by: Neil Horman <nhorman@openssl.org> Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com> Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/25153)