Add flexcharts 0.3.0 to stable

[MyHomeMyData]

Please add flexcharts to stable repo.

[github-actions]

Automated adapter checker

ioBroker.flexcharts

-

👍 No errors found

Adapter releases: https://www.iobroker.dev/adapter/flexcharts/releases
Adapter statistic: https://www.iobroker.dev/adapter/flexcharts/statistics

History and usage information for release 0.3.0:

0.3.0 created 8.1.2025 (6 days old)
33 users (57.89%)

stable release not yet available

Please verify that this PR really tries to update to release 0.3.0!

Add comment "RE-CHECK!" to start check anew

[mcm1957]

Your Adapter has been added to stable repository. If you like you can extend the news message here:

https://github.com/ioBroker/ioBroker.docs/blob/master/docs/en/history/history.md

If you add some more information / description, please consider to add this information to README.md too.

If you have any questions related to the news file, please contact @Apollon77 for further information.

Please note, that the PR announcing the new adapter at sta