fix(deps): update dependency org.assertj:assertj-core to v3.27.6 (#1736)

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This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
|
[org.assertj:assertj-core](https://assertj.github.io/doc/#assertj-core)
([source](https://redirect.github.com/assertj/assertj)) | `3.27.5` ->
`3.27.6` |
[![age](https://developer.mend.io/api/mc/badges/age/maven/org.assertj:assertj-core/3.27.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/org.assertj:assertj-core/3.27.5/3.27.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

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gradle/libraries.versions.toml

@@ -2,7 +2,7 @@
 retrofit2 = "3.0.0"
 jjwt = "0.13.0"
 jackson = "2.20.0"
-assertj = "3.27.5"
+assertj = "3.27.6"
 junit = "5.13.4"
 junitPlatformLauncher = "1.13.4"
 slf4j = "2.0.17"