[openssl/openssl] aa95fb: Properly limit the variable output size for BLAKE2

[Tomáš Mráz]

  Branch: refs/heads/openssl-3.2
  Home:   https://github.com/openssl/openssl
  Commit: aa95fb14003121d0b6c86e564c31cb95424d4bed
      https://github.com/openssl/openssl/commit/aa95fb14003121d0b6c86e564c31cb95424d4bed
  Author: Tomas Mraz <tomas at openssl.org>
  Date:   2023-11-13 (Mon, 13 Nov 2023)

  Changed paths:
    M doc/man7/EVP_MD-BLAKE2.pod
    M providers/implementations/digests/blake2b_prov.c
    M test/recipes/30-test_evp_data/evpmd_blake.txt

  Log Message:
  -----------
  Properly limit the variable output size for BLAKE2

The upper limit of the output size is the default output size
of the algorithm.

Reviewed-by: Tim Hudson <tjh at openssl.org>
Reviewed-by: Shane Lontis <shane.lontis at oracle.com>
Reviewed-by: Matt Caswell <matt at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22661)