ERR: Add ERR_pop()

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22674)

Copyright year updates


Reviewed-by: Richard Levitte <levitte@openssl.org>
Release: yes

QUIC TLS: Rethink error handling

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21547)

ERR: Move ERR_set_mark(), ERR_pop_to_mark() and ERR_clear_last_mark()

Move them to their own source file, so they end up in a separate
object file. This allows providers to override the

ERR: Move ERR_set_mark(), ERR_pop_to_mark() and ERR_clear_last_mark()

Move them to their own source file, so they end up in a separate
object file. This allows providers to override their implementation
to use the corresponding OSSL_FUNC upcalls without having to
reimplement everything from crypto/err/err.c.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17474)

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