changelog: add entry about fixed Portainer update

Author: MichaIng

CHANGELOG.txt

@@ -15,6 +15,7 @@ Bug fixes:
 - DietPi-Software | LazyLibrarian: Resolved an issue where using the web UI "Restart" button stopped the service to never come back up. Many thanks to @JappeHallunken for reporting this issue: https://dietpi.com/forum/t/24699/9
 - DietPi-Software | Fail2Ban: From Debian Trixie on, /etc/fail2ban/jail.d/defaults-debian.conf overrides the default ban action with nftables. This makes sense if otherwise the upstream default iptables was used, but it must not override any explicit admin choice or the dietpi-software default "route" action. More importantly, nftables requires the userland tools to be installed, otherwise bans cannot be applied. Installs via dietpi-software will now remove the config, all its other content is redundant, one change even a regression. Next DietPi update and our Trixie upgrade script will either remove the config, if it overrides an explicit choice, or will otherwise assure that nftables userland tools are installed, if it reasonably replaces the legacy iptables ban action.
 - DietPi-Software | Radarr: Resolved an issue on Bullseye systems where the service fails due to an incompatible embedded SQLite library, same as with Lidarr and Prowlarr earlier: https://wiki.servarr.com/radarr/faq#radarr-wont-start-on-debian-11-or-older-systems-due-to-sqlite-version. Many thanks to @tundrablasen for reporting this issue: https://github.com/MichaIng/DietPi/issues/7837
+- DietPi-Software | Portainer: Resolved an issue where with Docker 29.1.0 the CLI changed a way that our container image detection failed, so that "dietpi-software reinstall 185" did not update Portainer anymore. Coincidentally, the Portainer BE support we previously added solves this issue as well. Many thanks to @Pi-Rate for reporting this issue: https://dietpi.com/forum/t/24688/12
 
 As always, many smaller code performance and stability improvements, visual and spelling fixes have been done, too much to list all of them here. Check out all code changes of this release on GitHub: https://github.com/MichaIng/DietPi/pull/XXXX