Bump approvaltests from 13.0.0 to 15.3.0

Bumps [approvaltests](https://github.com/approvals/ApprovalTests.Java) from 13.0.0 to 15.3.0.
- [Release notes](https://github.com/approvals/ApprovalTests.Java/releases)
- [Commits](approvals/ApprovalTests.Java@13.0.0...15.3.0)

---
updated-dependencies:
- dependency-name: com.approvaltests:approvaltests
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -60,7 +60,7 @@
 		<dependency>
 			<groupId>com.approvaltests</groupId>
 			<artifactId>approvaltests</artifactId>
-			<version>13.0.0</version>
+			<version>15.3.0</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>