Update dependency @actions/artifact to v1.1.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@actions/artifact (source)	1.1.0 -> 1.1.1

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Release Notes

actions/toolkit

v1.1.1

• Fixed a bug in Node16 where if an HTTP download finished too quickly (<1ms, e.g. when it's mocked) we attempt to delete a temp file that has not been created yet #​1278

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