Bump nu to 0.105 (#5) #93

Job	Run time
Build Nushell from `main`	2m 55s
Test Plugin: nu_plugin_nu_example	10s
Test Plugin: nu_plugin_python_example	9s
Test Plugin: nu_plugin_custom_values	2m 29s
Test Plugin: nu_plugin_example	2m 26s
Test Plugin: nu_plugin_node_example	11s
	8m 20s

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