fix(deps): update micronaut-test to v3.9.2

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
io.micronaut.test:micronaut-test-spock (source)	3.8.2 -> 3.9.2
io.micronaut.test:micronaut-test-junit5 (source)	3.8.2 -> 3.9.2

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Release Notes

micronaut-projects/micronaut-test

v3.9.1: Micronaut Test 3.9.1

What's Changed

Other Changes 💡

• Revert mockk for kotlin 1.8 by @​wetted in https://github.com/micronaut-projects/micronaut-test/pull/723

Full Changelog: micronaut-projects/micronaut-test@v3.9.0...v3.9.1

v3.9.0: Micronaut Test 3.9.0

What's new

🚀 Dependency Upgrade

• build: mockk to 1.13.4
• build: Micronaut Framework 3.8.5
• doc: how to get an HttpClient when singletons are eagerly initialised (#​716)
• fix(deps): update dependency org.assertj:assertj-core to v3.24.2 (#​703)
• fix(deps): update mockito monorepo to v4.11.0 (#​694)

Full Changelog: micronaut-projects/micronaut-test@v3.8.1...v3.9.0

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