chore(deps-dev): Bump nl.jqno.equalsverifier:equalsverifier (#1640)

Bumps [nl.jqno.equalsverifier:equalsverifier](https://github.com/jqno/equalsverifier) from 3.15.3 to 3.15.4.
- [Release notes](https://github.com/jqno/equalsverifier/releases)
- [Changelog](https://github.com/jqno/equalsverifier/blob/main/CHANGELOG.md)
- [Commits](jqno/equalsverifier@equalsverifier-3.15.3...equalsverifier-3.15.4)

---
updated-dependencies:
- dependency-name: nl.jqno.equalsverifier:equalsverifier
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

testcontainers-spring-boot-parent/pom.xml

@@ -19,7 +19,7 @@
         <spring.boot.version>3.1.5</spring.boot.version>
         <spring.cloud.version>2022.0.4</spring.cloud.version>
         <spring.cloud.gcp.version>4.8.4</spring.cloud.gcp.version>
-        <equalsverifier.version>3.15.3</equalsverifier.version>
+        <equalsverifier.version>3.15.4</equalsverifier.version>
         <junit-jupiter.version>5.10.1</junit-jupiter.version>
         <spring.cloud.azure.version>5.7.0</spring.cloud.azure.version>
     </properties>