refactor: update comment

Co-authored-by: Teppei Fukuda <[email protected]>

pkg/dependency/parser/java/pom/artifact.go

@@ -18,7 +18,7 @@ import (
 var (
 	varRegexp        = regexp.MustCompile(`\${(\S+?)}`)
 	emptyVersionWarn = sync.OnceFunc(func() {
-		log.WithPrefix("pom").Warn("Dependency version is empty. Child dependencies will not be found.",
+		log.WithPrefix("pom").Warn("Dependency version cannot be determined. Child dependencies will not be found.",
 			// e.g. https://aquasecurity.github.io/trivy/latest/docs/coverage/language/java/#empty-dependency-version
 			log.String("details", doc.URL("/docs/coverage/language/java/", "empty-dependency-version")))
 	})