chore: upgrade to gradle 8.5

[aajtodd]

Issue #

Description of changes

• Upgrades the build system to Gradle 8.5.
• Upgrades Kotlin to 1.9.21 bug fix release
• 1.9.20 requires to specify a -Xexpect-actual-classes flag to suppress warnings about expect/actual classes;
• it'll be prohibited to use default arguments in expect declarations actualized with typealises; we actively use it for exception classes;
• Remove the DSL_SCOPE_VIOLATION suppression, from the ticket and testing locally this seems resolved
• upgrade atomic-fu to 0.23.1 and remove explicit dependency on it (plugin adds correct target dependencies depending on plugin settings)
• add kotlin-stdlib dependencies, they aren't actually builtin and require stdlib to be on classpath

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[sonarqubecloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

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