Hikari pool configuration improve

[sidey383]

At the moment, due to the database settings, I am getting the following errors

[WARN]: [pk.ajneb97.libs.hikaricp.pool.PoolBase] HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@9e24b8 (No operations allowed after connection closed.). Possibly consider using a shorter maxLifetime value.
[WARN]: [pk.ajneb97.libs.hikaricp.pool.PoolBase] HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@6504cbea (No operations allowed after connection closed.). Possibly consider using a shorter maxLifetime value.
[WARN]: [pk.ajneb97.libs.hikaricp.pool.PoolBase] HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@5ec8a585 (No operations allowed after connection closed.). Possibly consider using a shorter maxLifetime value.
[WARN]: [pk.ajneb97.libs.hikaricp.pool.PoolBase] HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@46c54bd7 (No operations allowed after connection closed.). Possibly consider using a shorter maxLifetime value.
[WARN]: [pk.ajneb97.libs.hikaricp.pool.PoolBase] HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@2218fcfe (No operations allowed after connection closed.). Possibly consider using a shorter maxLifetime value.
[WARN]: [pk.ajneb97.libs.hikaricp.pool.PoolBase] HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@ae62234 (No operations allowed after connection closed.). Possibly consider using a shorter maxLifetime value.

These improvements can help me and other users fix these errors and make connection configuration more flexible.