Update all dependencies

| datasource | package                                                                                           | from   | to     |
| ---------- | ------------------------------------------------------------------------------------------------- | ------ | ------ |
| maven      | com.zaxxer:HikariCP                                                                               | 5.1.0  | 6.0.0  |
| maven      | org.jetbrains.kotlin.plugin.serialization:org.jetbrains.kotlin.plugin.serialization.gradle.plugin | 1.9.20 | 2.0.20 |
| maven      | org.jetbrains.kotlin.jvm:org.jetbrains.kotlin.jvm.gradle.plugin                                   | 1.9.20 | 2.0.20 |
| maven      | org.jetbrains.kotlin:kotlin-gradle-plugin                                                         | 1.9.20 | 2.0.20 |

Author: renovate[bot]

libs.versions.toml

@@ -3,7 +3,7 @@ arrow = "1.2.1"
 arrowGradleConfig = "0.11.0"
 coroutines = "1.7.3"
 dokka = "1.9.10"
-kotlin = "1.9.20"
+kotlin = "2.0.20"
 kotest = "5.8.0"
 kotest-plugin = "5.8.0"
 kover = "0.7.4"
@@ -12,7 +12,7 @@ ktor = "2.3.6"
 logback = "1.4.11"
 sqldelight="2.0.0"
 testcontainers="1.19.3"
-hikari="5.1.0"
+hikari="6.0.0"
 postgresql="42.7.0"
 kjwt="0.9.0"
 kotest-arrow="1.4.0"