[openssl/openssl] 40a24c: When abidiff fails print out the XML diff

[Tomáš Mráz]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: 40a24c20a809916b43116c2bb16a36bdc40221f3
      https://github.com/openssl/openssl/commit/40a24c20a809916b43116c2bb16a36bdc40221f3
  Author: Tomas Mraz <tomas at openssl.org>
  Date:   2023-11-24 (Fri, 24 Nov 2023)

  Changed paths:
    M .github/workflows/ci.yml

  Log Message:
  -----------
  When abidiff fails print out the XML diff

This can be useful for fixing the CI if needed
without the necessity to run abidw locally.

Also rename the CI job to make its purpose clearer.

Reviewed-by: Hugo Landau <hlandau at openssl.org>
Reviewed-by: Matt Caswell <matt at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22689)