Errors during module enablement.

When the module is being enabled for a tenant using DB_SHAREDMAXPOOLSIZE instead of DB_MAXPOOLSIZE env variable, we get errors.

2023-09-01 08:17:48.605,ospt/mod-kb-ebsco-java/9ff8dc8a1b694a24b91bf8fea606662f,08:17:48 [414588/eholdings] [diku20] [790e3476-2cbe-4e36-8819-5a7c036e4c5f] [mod_kb_ebsco_java] INFO  RestRouting          invoking getEholdingsKbCredentials
2023-09-01 08:17:48.688,ospt/mod-kb-ebsco-java/9ff8dc8a1b694a24b91bf8fea606662f,08:17:48 [414588/eholdings] [diku20] [790e3476-2cbe-4e36-8819-5a7c036e4c5f] [mod_kb_ebsco_java] INFO  LogUtils             Do select query = SELECT * FROM diku20_mod_kb_ebsco_java.kb_credentials t1; with params = []
2023-09-01 08:17:48.690,ospt/mod-kb-ebsco-java/9ff8dc8a1b694a24b91bf8fea606662f,08:17:48 [414588/eholdings] [diku20] [790e3476-2cbe-4e36-8819-5a7c036e4c5f] [mod_kb_ebsco_java] INFO  PostgresClient       DB config read from environment variables
2023-09-01 08:17:48.711,ospt/mod-kb-ebsco-java/9ff8dc8a1b694a24b91bf8fea606662f,"08:17:48 [414588/eholdings] [diku20] [790e3476-2cbe-4e36-8819-5a7c036e4c5f] [mod_kb_ebsco_java] INFO  PostgresClient       postgreSQLClientConfig = {""maxSharedPoolSize"":20,""port"":5432,""username"":""folio"",""host"":""db.ospt.folio-eis.us-west-2"",""database"":""folio"",""password"":""..."",""postgres_tester"":false}"
2023-09-01 08:17:48.836,ospt/mod-kb-ebsco-java/9ff8dc8a1b694a24b91bf8fea606662f,08:17:48 [414588/eholdings] [diku20] [790e3476-2cbe-4e36-8819-5a7c036e4c5f] [mod_kb_ebsco_java] ERROR PostgresClient       queryAndAnalyze: ERROR: permission denied for table kb_credentials (42501) - SELECT * FROM diku20_mod_kb_ebsco_java.kb_credentials t1;
2023-09-01 08:17:48.836,ospt/mod-kb-ebsco-java/9ff8dc8a1b694a24b91bf8fea606662f,io.vertx.pgclient.PgException: ERROR: permission denied for table kb_credentials (42501)
2023-09-01 08:17:48.836,ospt/mod-kb-ebsco-java/9ff8dc8a1b694a24b91bf8fea606662f,    at io.vertx.pgclient.impl.codec.ErrorResponse.toException(ErrorResponse.java:31) ~[ms.jar:?]