4.1

Found and fixes another issue that surfaces on systems with systemd <= 253. Fixed the issue and added CI coverage.

What's Changed

• Fix systemd-creds decrypt failing on systemd 250-253 (Raspberry Pi OS bookworm); bump to 4.2 by @GavinLucas in https://github.com/GavinLucas/send-to-influx/pull/50

Full Changelog: GavinLucas/send-to-influx@4.1...4.2