mail/py-dkimpy-milter 1.2.3_4

security/py-pynacl: update 1.5.0 → 1.6.2

security/libsodium: Update to 1.0.21

The API remains compatible but bumping all dependent ports as SHLIB
has changed.

Changelog: https://github.com/jedisct1/libsodium/releases/tag/1.0.21-RELEASE
Security: https://00f.net/2025/12/30/libsodium-vulnerability/
PR: 279347

mail/py-dkimpy-milter,mail/py-spf-engine: chase rename of mail/py-pymilter

Update RUN_DEPENDS for dependents of mail/py-pymilter

*/*: Remove defunct references to python3.8

- Remove non DEFAULT python option in finance/quickfix
- Remove python conditionals for sysutils/py-borgmatic
- Remove python confitional deskutils/py-bugwarrior/Makefile

Approved by:	portmgr (just-fix-it)

python: bump all USE_PYTHON=distutils consumers after RUN_DEPENDS removal

Any missed ports, feel free to bump.

Any ports that need setuptools at runtime can have the devel/py-setuptools
manually added back to RUN_DEPENDS, but understand that this practice
is deprecated; see CHANGES for details.

security/libsodium: update to 1.0.19, bump dependent ports

PR:	278259
Reported by:	Andrey Korobkov <alster-vinterdalen.se>

mail/py-dkimpy-milter: remove unused variable from rc-script

Socket will be set in the configuration file.

mail/py-dkimpy-milter: New port

This is a DKIM signing and verification milter. It has been tested
with both Postfix and Sendmail.

Of note: this supports RFC8463 ED25519-SHA256 DKIM signatures