Update zip requirement from 5.0 to 6.0 #115

Job	Run time
Rustfmt	16s
Clippy	3m 56s
semver	55s
Code Coverage	11s
Build Book	3m 21s
Build Wasm Examples (basic)	53s
Build Wasm Examples (callback-example)	56s
Tests (ubuntu-latest, chrome, plotly_ndarray,plotly_image,static_export_default,debug)	3m 17s
Tests (windows-latest, chrome, plotly_ndarray,plotly_image,static_export_chromedriver,debug)	6m 51s
Tests (ubuntu-latest, firefox, plotly_ndarray,plotly_image,static_export_geckodriver,static_expor...	2m 58s
Tests (macos-latest, chrome, plotly_ndarray,plotly_image,static_export_default,debug)	4m 47s
Build Examples (3d_charts)	35s
Build Examples (basic_charts)	32s
Build Examples (customization/consistent_static_format_export)	1m 21s
Build Examples (custom_controls)	1m 0s
Build Examples (financial_charts)	34s
Build Examples (maps)	43s
Build Examples (ndarray)	29s
Build Examples (customization/density_mapbox_example)	22s
Build Examples (shapes)	29s
Build Examples (statistical_charts)	34s
Build Examples (images)	50s
Build Examples (subplots)	34s
Build Examples (kaleido)	1m 21s
Build Examples (themes)	29s
Build Examples (customization/multiple_plots_example)	27s
Build Examples (scientific_charts)	30s
	39m 11s

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