[Security] Bump solr.version from 7.4.0 to 8.3.0 (#284)

Bumps `solr.version` from 7.4.0 to 8.3.0.

Updates `solr-core` from 7.4.0 to 8.3.0

Updates `solr-test-framework` from 7.4.0 to 8.3.0

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

pom.xml

@@ -63,7 +63,7 @@
         <build-helper.plugin.version>3.0.0</build-helper.plugin.version>
         <okhttp.version>3.8.0</okhttp.version>
         <ant.version>1.10.1</ant.version>
-        <solr.version>7.4.0</solr.version>
+        <solr.version>8.3.0</solr.version>
         <spring-data-solr.version>4.0.3.RELEASE</spring-data-solr.version>
         <spring-kafka.version>2.1.4.RELEASE</spring-kafka.version>
         <kafka.version>1.0.1</kafka.version>