Update env_logger requirement from 0.10 to 0.11 #16

Job	Run time
Clippy	3m 55s
Rustfmt	14s
semver	43s
Tests (ubuntu-latest, chrome, plotly_ndarray,plotly_image,static_export_default,debug)	3m 2s
Tests (ubuntu-latest, firefox, plotly_ndarray,plotly_image,static_export_geckodriver,static_expor...	3m 3s
Build Wasm Examples (basic)	1m 0s
Build Wasm Examples (callback-example)	56s
Tests (windows-latest, chrome, plotly_ndarray,plotly_image,static_export_chromedriver,debug)	5m 56s
Tests (macos-latest, chrome, plotly_ndarray,plotly_image,static_export_default,debug)	1m 53s
Build Book	3m 16s
Code Coverage	19s
Build Examples (basic_charts)	26s
Build Examples (custom_controls)	47s
Build Examples (3d_charts)	36s
Build Examples (customization/consistent_static_format_export)	1m 21s
Build Examples (customization/density_mapbox_example)	31s
Build Examples (customization/multiple_plots_example)	27s
Build Examples (financial_charts)	36s
Build Examples (statistical_charts)	36s
Build Examples (kaleido)	1m 17s
Build Examples (ndarray)	35s
Build Examples (scientific_charts)	34s
Build Examples (maps)	41s
Build Examples (subplots)	28s
Build Examples (images)	48s
Build Examples (shapes)	29s
Build Examples (themes)	36s
	35m 5s

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