If you are running with JDK 11.0.11 or later or JDK 1.8.0_292 or later, TLSv1 is already disabled by default so no further configuration is necessary.
If you are running with a JDK version where TLSv1 is still enabled by default, then you can update your ssl-context configuration to specify the protocols that you want enabled, e.g.,
/subsystem=elytron/server-ssl-context=applicationSSC:write-attribute(name=protocols,value=[TLSv1.2, TLSv1.3])