Remove compiler warnings

spring-credhub-core/src/main/java/org/springframework/credhub/core/credential/CredHubCredentialTemplate.java

@@ -262,6 +262,7 @@ public class CredHubCredentialTemplate implements CredHubCredentialOperations {
 	}
 
 	@Override
+	@Deprecated
 	public List<CredentialPath> getAllPaths() {
 		return credHubOperations.doWithRest(new RestOperationsCallback<List<CredentialPath>>() {
 			@Override

spring-credhub-core/src/test/java/org/springframework/credhub/core/credential/CredHubCredentialTemplateUnitTests.java

@@ -36,6 +36,7 @@ import static org.springframework.http.HttpStatus.OK;
 @RunWith(MockitoJUnitRunner.class)
 public class CredHubCredentialTemplateUnitTests extends CredHubCredentialTemplateUnitTestsBase {
 	@Test
+	@SuppressWarnings("deprecation")
 	public void getAllPaths() {
 		when(restTemplate.getForEntity(SHOW_ALL_URL_QUERY, CredentialPathData.class))
 				.thenReturn(new ResponseEntity<>(new CredentialPathData(new CredentialPath("/path1"), new CredentialPath("/path2")), OK));