Bump org.assertj:assertj-core from 3.25.3 to 3.26.3

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) from 3.25.3 to 3.26.3.
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.25.3...assertj-build-3.26.3)

---
updated-dependencies:
- dependency-name: org.assertj:assertj-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

build.gradle.kts

@@ -17,11 +17,11 @@ repositories {
 
 dependencies {
     implementation("com.fasterxml.jackson.core:jackson-databind:2.17.1")
-    implementation("org.assertj:assertj-core:3.25.3")
+    implementation("org.assertj:assertj-core:3.26.3")
     implementation("org.jetbrains:annotations:24.1.0")
     testImplementation("org.jetbrains.kotlin:kotlin-stdlib:2.0.0")
     testImplementation("junit:junit:4.13.2")
-    testImplementation("org.assertj:assertj-core:3.25.3")
+    testImplementation("org.assertj:assertj-core:3.26.3")
 }
 
 java {