Set connector version to 0.0.4

Author: surister

cratedb_jdbc/manifest.xml

@@ -1,6 +1,6 @@
 <?xml version='1.0' encoding='utf-8' ?>
 
-<connector-plugin class='postgres_jdbc' superclass='jdbc' plugin-version='0.0.3' name='CrateDB' version='18.1'
+<connector-plugin class='postgres_jdbc' superclass='jdbc' plugin-version='0.0.4' name='CrateDB' version='18.1'
                   min-version-tableau='2020.4'>
     <vendor-information>
         <company name="Crate.io"/>