Update @iobroker/testing requirement from ^2.5.2 to ^2.5.4

[dependabot[bot]]

Updates the requirements on @iobroker/testing to permit the latest version.

Changelog

Sourced from @​iobroker/testing's changelog.

2.5.4 (2022-02-02)

• Modifying ioBroker databases now uses the same methods that JS-Controller uses internally. This ensures that the testing is compatible with the jsonl database format.
• Testing adapters with adapter dependencies that try to access the databases during installation now works.

2.5.2 (2021-09-18)

• Fix: adminUI.config is now respected for the config UI check and JSON config is allowed too
• Updated dependencies
• Modernized build process

2.5.1 (2021-09-05)

• We now use the nightly js-controller dev builds instead of GitHub installation

2.4.4 (2021-03-14)

• Fix error: iopackContent.common.titleLang is not iterable

2.4.3 (2021-03-12)

• Fix: The adapter main file now correctly gets located when it is only defined in package.json, not io-package.json

2.4.2 (2021-01-06)

• Fixed compatibility with the reworked database classes
• Improved shutdown behavior of the adapter

2.4.1 (2021-01-01)

• Fixed a bug where the wrong js-controller dependency would be installed

2.4.0 (2020-12-07)

• Unit tests for adapter startup were removed and only log a warning that you can remove them
• Upgrade many packages

2.3.0 (2020-08-20)

• Added missing async functions to adapter mock
• Fixed: TypeError "Cannot redefine property readyHandler" when using createMocks more than once
• Upgrade to @types/iobroker v3.0.12

2.2.0 (2020-04-15)

• Upgrade to @types/iobroker v3.0.2
• Added mocks for supportsFeature, getPluginInstance, getPluginConfig

2.1.0 (2020-03-01)

• Integration tests: For Node.js >= 10, the engine-strict flag is now set to true to be in line with newer ioBroker installations

v2.0.2

• Unit tests: added mocks for getAbsoluteDefaultDataDir and getAbsoluteInstanceDataDir

Sorry, there isn't more yet.

Commits

• 9ec7533 chore: release v2.5.4
• 58d4802 fix: migrate to separate DB server/client instances, install controller and a...
• 493f189 chore(deps-dev): bump typescript from 4.4.4 to 4.5.5 (#461)
• 962fd2c chore(deps-dev): bump @​types/chai from 4.2.22 to 4.3.0 (#462)
• d7a23f6 chore(deps-dev): bump prettier from 2.4.1 to 2.5.1 (#465)
• 638f659 chore: release v2.5.3
• b6d1967 chore: update release-script
• 9232eac fix: ensure db type is "file" (#460)
• 4d514c8 chore(deps): bump follow-redirects from 1.14.6 to 1.14.7 (#458)
• 817886e chore(deps): bump sinon from 11.1.2 to 12.0.1 (#456)
• Additional commits viewable in compare view

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