return nothing if there are no release notes

main.go

@@ -109,6 +109,12 @@ func main() {
 	}
 
 	notes, err := getAllReleaseNotes(ctx, client, owner, repo, base, head, includePrLinks, typeLabelFlags)
+
+	// if the release notes do not contain any features, improvements, or bugs, do not submit release notes
+	if len(notes.Features) == 0 && len(notes.Improvements) == 0 && len(notes.Bugs) == 0 {
+		return
+	}
+
 	if err != nil {
 		log.Fatalf("Failed to get release notes: %v", err)
 	}