fix CI issues #120

Job	Run time
Code Coverage	1m 33s
Rustfmt	13s
Clippy	2m 41s
Tests (ubuntu-latest)	2m 9s
Tests (windows-latest)	3m 6s
Build Examples (3d_charts)	28s
Tests (macos-latest)	2m 28s
Build Wasm Examples (wasm-yew-minimal)	48s
Build Examples (basic_charts)	33s
Build Examples (custom_controls)	28s
Build Examples (financial_charts)	29s
Build Examples (images)	34s
Build Examples (kaleido)	1m 11s
Build Examples (maps)	33s
Build Examples (ndarray)	33s
Build Examples (scientific_charts)	31s
Build Examples (shapes)	29s
Build Examples (subplots)	28s
	19m 15s

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