Merge pull request #19 from OpenRefine/revert-18-dependabot/maven/org.openrefine-main-3.9.0

Revert "Bump org.openrefine:main from 3.8.7 to 3.9.0"

Author: sunilnatraj

pom.xml

@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
 
   <properties>
-    <openrefine.version>3.9.0</openrefine.version>
+    <openrefine.version>3.8.7</openrefine.version>
     <!-- Change the values below, as well as the groupId & url, to reflect your extension -->
     <extension.id>openrefine-files-extension</extension.id>
     <extension.name>OpenRefine Files Extension</extension.name>