fix CI issues #118

Job	Run time
Code Coverage	2m 3s
Build Examples (3d_charts)	27s
Build Wasm Examples (wasm-yew-minimal)	53s
Clippy	2m 37s
Build Examples (basic_charts)	46s
Build Examples (custom_controls)	29s
Rustfmt	15s
Tests (ubuntu-latest)	1m 36s
Build Examples (financial_charts)	29s
Tests (windows-latest)	4m 7s
Build Examples (images)	48s
Tests (macos-latest)	1m 41s
Build Examples (kaleido)	1m 40s
Build Examples (maps)	29s
Build Examples (ndarray)	30s
Build Examples (scientific_charts)	32s
Build Examples (shapes)	34s
Build Examples (subplots)	26s
	20m 22s

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