Update all dependencies

| datasource     | package                                                   | from     | to       |
| -------------- | --------------------------------------------------------- | -------- | -------- |
| gradle-version | gradle                                                    | 8.6      | 9.0.0    |
| maven          | com.diffplug.spotless:com.diffplug.spotless.gradle.plugin | 6.25.0   | 7.2.1    |
| maven          | com.diffplug.spotless:spotless-plugin-gradle              | 6.25.0   | 7.2.1    |
| maven          | org.http4k:http4k-format-jackson                          | 5.13.7.0 | 6.15.1.0 |
| maven          | org.http4k:http4k-format-moshi                            | 5.13.7.0 | 6.15.1.0 |
| maven          | org.http4k:http4k-core                                    | 5.13.7.0 | 6.15.1.0 |
| maven          | org.http4k:http4k-bom                                     | 5.13.7.0 | 6.15.1.0 |

Author: renovate[bot]

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

libs.versions.toml

@@ -9,7 +9,7 @@ reflection-util = "2.15.0"
 guava = "33.0.0-jre"
 apache-commons-lang3 = "3.14.0"
 apache-commons-collections4 = "4.4"
-http4k = "5.13.7.0"
+http4k = "6.15.1.0"
 moshix = "1.7.20-Beta-0.18.3"
 immutables = "2.10.0"
 exposed = "0.47.0"
@@ -23,7 +23,7 @@ kover = "0.7.5"
 kotest = "5.8.0"
 assertj-core = "3.25.3"
 detekt = "1.23.5"
-spotless = "6.25.0"
+spotless = "7.2.1"
 apache-log4j = "2.22.1"
 testLogger = "4.0.0"
 jetbrains-annotations = "26.0.0"