Remove pointless message for slf4j

[jonesbusy]

Seems recent upgrade of slf4j (Maybe #164) started to print message when tool is starting

SLF4J(I): Connected with provider of type [ch.qos.logback.classic.spi.LogbackServiceProvider]

This is not useful at all, we know that we are using logback as logger implementation

Removing this message

See https://stackoverflow.com/questions/78063648/how-to-stop-slf4j-printing-a-pointless-information-message-at-startup

Testing done

Ensuring the message disapear when running the tool after setting the system property

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[jonesbusy]

See also qos-ch/slf4j#422