Update MAVEN_CLI_OPTS and MAVEN_OPTS to reflect current Maven features

Description

Since Maven 3.6.1 the need for SLF4J "incantations" in the MAVEN_CLI_OPTS has been deprecated. We can use --no-transfer-progress (-ntp in short). This change was recently merged to GitLab master in MR 98329.

Implementation ideas

Remove the SLF4J TransferListener "incantation" and use the Maven --no-transfer-progess option.