Fix formatting of ArtifactoryServiceTests

See gh-33967

ci/images/releasescripts/src/test/java/io/spring/concourse/releasescripts/artifactory/ArtifactoryServiceTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2021 the original author or authors.
+ * Copyright 2012-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -70,8 +70,11 @@ class ArtifactoryServiceTests {
 				.andExpect(method(HttpMethod.POST))
 				.andExpect(content().json(
 						"{\"status\": \"staged\", \"sourceRepo\": \"libs-staging-local\", \"targetRepo\": \"libs-milestone-local\"}"))
-				.andExpect(header("Authorization", "Basic " + Base64.getEncoder().encodeToString(String
+				.andExpect(
-						.format("%s:%s", this.properties.getUsername(), this.properties.getPassword()).getBytes())))
+						header("Authorization",
+								"Basic " + Base64.getEncoder()
+										.encodeToString(String.format("%s:%s", this.properties.getUsername(),
+												this.properties.getPassword()).getBytes())))
 				.andExpect(header("Content-Type", MediaType.APPLICATION_JSON.toString())).andRespond(withSuccess());
 		this.service.promote("libs-milestone-local", getReleaseInfo());
 		this.server.verify();