fix(releaseprep): green unchanged-version prepare

internal/releaseprep/releaseprep.go

@@ -161,7 +161,7 @@ func updateVersionFile(rootDir, version string, options resolvedOptions) error {
 	replacement := strings.Replace(match[0], match[1], version, 1)
 	updated := strings.Replace(string(contents), match[0], replacement, 1)
 	if updated == string(contents) {
-		return fmt.Errorf("version value not found in %s", path)
+		return nil
 	}
 
 	if err := os.WriteFile(path, []byte(updated), 0o644); err != nil {