Update dependency mike to v2.1.3

This MR contains the following updates:

Package	Update	Change
mike	patch	==2.1.2 -> ==2.1.3

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⚠ Warning

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Release Notes

jimporter/mike (mike)

v2.1.3

Compare Source

Bug fixes

• When deploying using a deploy prefix, only delete stale versions of the docs within that prefix

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