Clean up some new Java 17 code smell aroudn stream collection

src/main/java/org/eclipsefoundation/git/eca/config/EclipseQuteTemplateExtensions.java

@@ -12,7 +12,6 @@
 package org.eclipsefoundation.git.eca.config;
 
 import java.util.List;
-import java.util.stream.Collectors;
 
 import org.apache.commons.lang3.StringUtils;
 import org.eclipsefoundation.git.eca.dto.CommitValidationMessage;
@@ -47,7 +46,7 @@ public class EclipseQuteTemplateExtensions {
      * @return a list of flattened errors, or an empty list if (none are found.
      */
     static List<CommitValidationMessage> getValidationErrors(List<CommitValidationStatus> statuses) {
-        return statuses.stream().flatMap(s -> s.getErrors().stream()).collect(Collectors.toList());
+        return statuses.stream().flatMap(s -> s.getErrors().stream()).toList();
     }
 
     /**
@@ -62,7 +61,7 @@ public class EclipseQuteTemplateExtensions {
                 .filter(s -> s.getErrors().isEmpty())
                 .map(CommitValidationStatus::getUserMail)
                 .distinct()
-                .collect(Collectors.toList());
+                .toList();
     }
 
     /**