Update countdown to 2.3.0

[jack-blackson]

No description provided.

[github-actions]

Automated adapter checker

ioBroker.countdown

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👍 No errors found

• 👀 [S522] Please consider migrating to admin 5 UI (jsonConfig).
• 👀 [W184] "common.materialize" is deprecated for admin >= 5 at io-package.json. Please use property "adminUI".
• 👀 [W513] "gulpfile.js" found in repo! Think about migrating to @iobroker/adapter-dev package
• 👀 [W953] .npmignore found - consider using package.json object "files" instead.

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

History and usage information for release 2.3.0:

2.3.0 created 20.9.2024 (23 days old)
69 users (7.47%)

2.2.0 (stable) created 25.8.2023 (415 days old)
693 users (stable) (75.00%)

Please verify that this PR really tries to update to release 2.3.0!

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

[mcm1957]

@jack-blackson
Please either (re)add github based tests for node.js 18 OR adapt engines clause at package.json to require node.js 20 minium.
See https://github.com/jack-blackson/ioBroker.countdown/blob/cd14cb66b636d65cdc7986d1a35940807b374431/package.json#L5

A new release is not yet required but changes must be commited to head branch before release.

[mcm1957]

jack-blackson/ioBroker.countdown#135

reminder 24.10.2024