Fix typo: occured -> occurred (#6846)

Signed-off-by: SAY-5 <saiasish.cnp@gmail.com>
Co-authored-by: SAY-5 <saiasish.cnp@gmail.com>

Author: SAY-5

data-prepper-plugins/kafka-plugins/src/main/java/org/opensearch/dataprepper/plugins/kafka/service/SchemaService.java

@@ -135,7 +135,7 @@ public void registerSchema(final String topic) {
                 registerSchema(topic, schemaString);
             }
         } catch (Exception e) {
-            throw new RuntimeException("error occured while  schema registeration " + e.getMessage());
+            throw new RuntimeException("error occurred while  schema registeration " + e.getMessage());
         }
     }