Update zip requirement from 5.0 to 6.0 #117

Job	Run time
Clippy	3m 57s
Rustfmt	17s
Build Wasm Examples (basic)	52s
Build Wasm Examples (callback-example)	51s
semver	1m 15s
Build Book	3m 30s
Code Coverage	10s
Tests (macos-latest, chrome, plotly_ndarray,plotly_image,static_export_default,debug)	4m 32s
Tests (windows-latest, chrome, plotly_ndarray,plotly_image,static_export_chromedriver,debug)	6m 29s
Tests (ubuntu-latest, chrome, plotly_ndarray,plotly_image,static_export_default,debug)	2m 56s
Build Examples (financial_charts)	36s
Build Examples (basic_charts)	33s
Build Examples (custom_controls)	36s
Build Examples (images)	1m 7s
Build Examples (customization/consistent_static_format_export)	1m 15s
Build Examples (kaleido)	1m 31s
Tests (ubuntu-latest, firefox, plotly_ndarray,plotly_image,static_export_geckodriver,static_expor...	2m 58s
Build Examples (3d_charts)	43s
Build Examples (statistical_charts)	26s
Build Examples (subplots)	32s
Build Examples (themes)	32s
Build Examples (customization/density_mapbox_example)	32s
Build Examples (customization/multiple_plots_example)	38s
Build Examples (shapes)	41s
Build Examples (ndarray)	31s
Build Examples (maps)	48s
Build Examples (scientific_charts)	29s
	39m 17s

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