[build] Fix breakage

plugins/jreleaser-maven-plugin/src/main/java/org/jreleaser/maven/plugin/VersionPattern.java

@@ -0,0 +1,33 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright 2020-2021 The JReleaser authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jreleaser.maven.plugin;
+
+/**
+ * @author Andres Almiray
+ * @since 0.5.0
+ */
+public enum VersionPattern {
+    SEMVER,
+    JAVA_MODULE,
+    CUSTOM;
+
+    @Override
+    public String toString() {
+        return name().toLowerCase();
+    }
+}