fix CI issues #128

Job	Run time
Rustfmt	15s
Build Wasm Examples (wasm-yew-minimal)	45s
Build Examples (3d_charts)	35s
Code Coverage	2m 8s
Build Examples (basic_charts)	36s
Tests (ubuntu-latest)	2m 11s
Clippy	3m 8s
Build Examples (custom_controls)	32s
Tests (windows-latest)	3m 47s
Build Examples (financial_charts)	40s
Tests (macos-latest)	2m 24s
Build Examples (images)	42s
Build Examples (kaleido)	1m 12s
Build Examples (maps)	27s
Build Examples (ndarray)	33s
Build Examples (scientific_charts)	26s
Build Examples (shapes)	36s
Build Examples (subplots)	52s
	21m 49s

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