Bump nu to 0.106 #144

Job	Run time
Build Nushell from `main`	2m 51s
Test Plugin: nu_plugin_python_example	14s
Test Plugin: nu_plugin_example	2m 2s
Test Plugin: nu_plugin_node_example	9s
Test Plugin: nu_plugin_custom_values	2m 3s
Test Plugin: nu_plugin_nu_example	12s
	7m 31s

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