fix CI issues #132

Job	Run time
Rustfmt	15s
Tests (ubuntu-latest)	1m 45s
Build Wasm Examples (wasm-yew-minimal)	50s
Tests (windows-latest)	4m 18s
Build Examples (3d_charts)	27s
Build Examples (basic_charts)	33s
Clippy	2m 49s
Tests (macos-latest)	2m 51s
Build Examples (custom_controls)	35s
Code Coverage	1m 38s
Build Examples (financial_charts)	29s
Build Examples (images)	38s
Build Examples (kaleido)	1m 31s
Build Examples (maps)	34s
Build Examples (ndarray)	37s
Build Examples (scientific_charts)	27s
Build Examples (shapes)	33s
Build Examples (subplots)	30s
	21m 20s

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