fix CI issues #119

Job	Run time
Code Coverage	2m 24s
Clippy	3m 0s
Build Examples (3d_charts)	27s
Build Wasm Examples (wasm-yew-minimal)	41s
Build Examples (basic_charts)	28s
Rustfmt	11s
Tests (ubuntu-latest)	2m 14s
Build Examples (custom_controls)	29s
Tests (windows-latest)	3m 53s
Build Examples (financial_charts)	36s
Tests (macos-latest)	1m 47s
Build Examples (images)	34s
Build Examples (kaleido)	1m 12s
Build Examples (maps)	27s
Build Examples (ndarray)	32s
Build Examples (scientific_charts)	40s
Build Examples (shapes)	36s
Build Examples (subplots)	27s
	20m 38s

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