Update license header in FindDependency.java (#155)

Updated license information in FindDependency.java to match rest of rewrite-java-dependencies

Author: jimschubert

src/main/java/org/openrewrite/java/dependencies/FindDependency.java

@@ -1,7 +1,17 @@
 /*
  * Copyright 2025 the original author or authors.
- *
- * Moderne Proprietary. Only for use by Moderne customers under the terms of a commercial contract.
+ * <p>
+ * 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
+ * <p>
+ * https://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.openrewrite.java.dependencies;