Chore(deps-dev): Bump org.assertj:assertj-core in /openmetadata-service

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) from 3.26.3 to 3.27.7.
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.26.3...assertj-build-3.27.7)

---
updated-dependencies:
- dependency-name: org.assertj:assertj-core
  dependency-version: 3.27.7
  dependency-type: direct:development
...

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

Author: dependabot[bot]

openmetadata-service/pom.xml

@@ -648,7 +648,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>3.26.3</version>
+      <version>3.27.7</version>
       <scope>test</scope>
     </dependency>
     <dependency>