[openssl/openssl] 66c27d: Properly limit the variable output size for BLAKE2

[Tomáš Mráz]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: 66c27d06e0e9a1bb716c67390ad9e5ac613d45d3
      https://github.com/openssl/openssl/commit/66c27d06e0e9a1bb716c67390ad9e5ac613d45d3
  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/blake2_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 respective algorithm variants.

Reviewed-by: Matt Caswell <matt at openssl.org>
Reviewed-by: Shane Lontis <shane.lontis at oracle.com>
(Merged from https://github.com/openssl/openssl/pull/22659)