[openssl/openssl] 856f2a: test/pkcs12_api_test.c: fix failure on MinGW

[xtkoba]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: 856f2aa7be6bb59bc72493845d92e31ef0523c79
      https://github.com/openssl/openssl/commit/856f2aa7be6bb59bc72493845d92e31ef0523c79
  Author: xtkoba <69125751+xtkoba at users.noreply.github.com>
  Date:   2022-09-05 (Mon, 05 Sep 2022)

  Changed paths:
    M test/pkcs12_api_test.c

  Log Message:
  -----------
  test/pkcs12_api_test.c: fix failure on MinGW

Use binary mode when opening a file.

Partially fixes #18017.

Reviewed-by: Kurt Roeckx <kurt at roeckx.be>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19117)