Make docgen part of site

Author: vy

log4j-internal-docgen/pom.xml

@@ -122,7 +122,6 @@
     <kubernetes-client.version>5.12.4</kubernetes-client.version>
     <lightcouch.version>0.2.0</lightcouch.version>
     <log4j.version>1.2.17</log4j.version>
-    <log4j-docgen.version>0.8.0-SNAPSHOT</log4j-docgen.version>
     <log4j2-cachefile-transformer.version>2.15.0</log4j2-cachefile-transformer.version>
     <log4j2-ecs-layout.version>1.5.0</log4j2-ecs-layout.version>
     <logback.version>1.3.14</logback.version>