Bump nu to 0.106 (#6) #145

Job	Run time
Build Nushell from `main`	2m 54s
Test Plugin: nu_plugin_nu_example	16s
Test Plugin: nu_plugin_python_example	9s
Test Plugin: nu_plugin_example	2m 0s
Test Plugin: nu_plugin_node_example	11s
Test Plugin: nu_plugin_custom_values	1m 59s
	7m 29s

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