Update GCC 14.1 library versions in docs

When we are already touching this topic, here is a patch like r13-5126
which documents the upcoming release symbol versions in the documentation.

2024-04-11  Jakub Jelinek  <jakub@redhat.com>

	* doc/xml/manual/abi.xml: Add latest library versions.
	* doc/html/manual/abi.html: Regenerate.