pfSense

upgrade_config.inc: Remove all restore_rrd() calls

Commit 0869605131ba3e5d7e502af7a799e54f27d2e7f6 removed the
restore_rrd() function. To avoid errors when restoring older configs
remove all callers to it.

Bug: https://redmine.pfsense.org/issues/8231
Signed-off-by: Alistair Francis <alistair@alistair23.me>

Fix foreach error on hosts that have no dyndns entries.

Update the Copyright notice for pfSense.

Merge pull request #3893 from JoeriCapens/ddns-rfc2136-algorithm-choice

Delete keytype field from config, remove unnecessary file cleanup.

Change how SANs are generated from the CN, considering that not all CNs will produce a valid SAN. Fixes #8252

Do not make a bypasslan IPsec config block when it should be disable/empty. Fixes #8239

Update language selections

Remove old dnssec-keygen style files during upgrade

Add RFC 2136 Client key algorithm choice. Implements #8244