Update mqtt-client to 1.8.0

[mcm1957]

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[github-actions]

Automated adapter checker

ioBroker.mqtt-client

-

👍 No errors found

• 👀 [W105] Missing suggested translation into uk of "common.titleLang" in io-package.json.
• 👀 [W109] Missing suggested translation into uk of "common.desc" in io-package.json.
• 👀 [W145] Missing suggested translation into uk of some "common.news" in io-package.json.
• 👀 [W156] Adapter should support admin 5 UI (jsonConfig) if you do not use a React based UI
• 👀 [W184] "common.main" is deprecated and ignored. Please remove from io-package.json. Use "main" at package.json instead.
• 👀 [W184] "common.materialize" is deprecated for admin >= 5 at io-package.json. Please use property "adminUI".
• 👀 [W505] setTimeout found in "main.js", but no clearTimeout detected

Adapter releases: https://www.iobroker.dev/adapter/mqtt-client/releases
Adapter statistic: https://www.iobroker.dev/adapter/mqtt-client/statistics

History and usage information for release 1.8.0:

1.8.0 created 7.4.2024 (30 days old)
348 users (4.37%)

1.7.0 (stable) created 30.10.2023 (190 days old)
4373 users (stable) (54.94%)

Please verify that this PR really tries to update to release 1.8.0!

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