test/quic-openssl-docker/hq-interop/quic-hq-interop.c: Move BIO_free() to err label...

test/quic-openssl-docker/hq-interop/quic-hq-interop.c: Move BIO_free() to err label to avoid memory leak

Relocate the BIO_free() call to the 'err' label to ensure the memory is properly freed in case of an error.

Fixes: ec6200bf0f ("Move hq-interop code to test/quic-openssl-docker")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/27995)