Bump org.apache.solr:solr-solrj from 6.3.0 to 8.11.3 in /index/lucene

Bumps org.apache.solr:solr-solrj from 6.3.0 to 8.11.3.

---
updated-dependencies:
- dependency-name: org.apache.solr:solr-solrj
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

index/lucene/pom.xml

@@ -14,7 +14,7 @@
   <properties>
     <dev.path>${basedir}/../../dev</dev.path>
     <lucene.version>6.3.0</lucene.version>
-    <solr.version>6.3.0</solr.version>
+    <solr.version>8.11.3</solr.version>
   </properties>
 
   <dependencies>