Update supported Lucene version to 7.6.0

h2/src/docsrc/html/build.html

@@ -116,7 +116,7 @@ build jarClient
 <h3>Using Apache Lucene</h3>
 <p>
 Apache Lucene 5.5.5 is used for testing.
-Newer versions up to 7.5.0 can also be used.
+Newer versions up to 7.6.0 can also be used.
 </p>
 
 <h2 id="maven2">Using Maven 2</h2>

h2/src/docsrc/html/tutorial.html

@@ -1234,7 +1234,7 @@ org.h2.fulltext.FullText.searchData(conn, text, limit, offset);
 <h3>Using the Apache Lucene Fulltext Search</h3>
 <p>
 To use the Apache Lucene full text search, you need the Lucene library in the classpath.
-Apache Lucene 5.5.5 or later version up to 7.5.0 is required.
+Apache Lucene 5.5.5 or later version up to 7.6.0 is required.
 Newer versions may also work, but were not tested.
 How to do that depends on the application; if you use the H2 Console, you can add the Lucene
 jar file to the environment variables <code>H2DRIVERS</code> or