Update dependency io.mockk:mockk to v1.12.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
io.mockk:mockk (source)	1.12.0 -> 1.12.3

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Release Notes

mockk/mockk

v1.12.3

Compare Source

• Fixed #​707 via #​776, thanks @​romrell4
• Fixed #​754 fia #​782, thanks @​hoisie
• Fixed #​425 via #​785, thanks @​npars
• Added Quarkus support, thanks @​glefloch
• Updated logback to 1.2.10, thanks @​Neustradamus
• Converted some more build.gradle files to kotlin and bumped some JDK and kotlin versions

v1.12.2

Compare Source

• Add andThenJust, thanks @​NWuensche
• Upgraded gradle and several dependencies versions, including the logback dependency that was vulnerable to https://cve.report/CVE-2021-42550, thanks @​SampathKumarAmex and @​usulkies (and @​jbg for spotting the CVE vulnerability)
• Converted some more build.gradle files to Kotlin, thanks @​geekiyer

v1.12.1

• Fixed #​565, thanks @​AlexKrupa
• Reorganized tests to reflect the real feature they test rather than the number of the GitHub issue, thanks @​drazen04, @​fejd, @​polarene
• Converted most of the build.gradle files to kotlin, thanks @​geekiyer, @​vasanthdharmaraj, @​fejd, @​DeKaN
• Fixed a wrong behavior with unmockkAll inside the MockKExtension, thanks @​gmazzo
• Improved support for verification stack traces, thanks @​kkurczewski

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