fix: use `dunce` crate to remove UNC prefix #50

Job	Run time
plan	11s
upload-local-artifacts (macos-11, curl --proto '=https' --tlsv1.2 -LsSf https://github.com/axodot...	2m 18s
upload-local-artifacts (macos-11, curl --proto '=https' --tlsv1.2 -LsSf https://github.com/axodot...	9m 51s
upload-local-artifacts (windows-2019, irm https://github.com/axodotdev/cargo-dist/releases/downl...	6m 34s
upload-local-artifacts (ubuntu-20.04, curl --proto '=https' --tlsv1.2 -LsSf https://github.com/ax...	2m 33s
upload-global-artifacts	12s
should-publish	0s
publish-release	0s
	21m 39s

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