Update sureflap to 2.1.1

[Sickboy78]

Please update my adapter ioBroker.sureflap to version 2.1.1.

This pull request was created by https://www.iobroker.dev c0726ff.

[mcm1957]

As you are limiting the tests to node 18 and 20 (which is OK) the adapter must require node 18 minimum.

Please check and merge PR Sickboy78/ioBroker.sureflap#55 to add engines clause to package.json.

Note: a new release is not required immidiatly but note the fact that node 18 is required at README.md

reminder 15.3.2024

[mcm1957]

PR merged

[github-actions]

Automated adapter checker

ioBroker.sureflap

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👍 No errors found

• 👀 [W156] Adapter should support admin 5 UI (jsonConfig) if you do not use a React based UI

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

History and usage information for release 2.1.1:

2.1.1 created 25.2.2024 (16 days old)
26 users (9.59%)

1.2.3 (stable) created 29.12.2023 (74 days old)
168 users (stable) (61.99%)

Please verify that this PR really tries to update to release 2.1.1!

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