Java: Add integration tests for Maven 4

Author: IdrissRio

java/ql/integration-tests/java/maven_3_fetch_maven_4_wrapper/ExtractionErrors.expected

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+Diagnostics/ExtractionErrors.ql

java/ql/integration-tests/java/maven_3_fetch_maven_4_wrapper/ExtractionErrors.qlref

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+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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
+#
+#   http://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.
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/4.0.0-rc-3/apache-maven-4.0.0-rc-3-bin.zip