chore(deps): update actions/cache action to v2

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
actions/cache	major	v1 -> v2

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Release Notes

actions/cache

### [`v2`](https://togithub.com/actions/cache/compare/v1...v2) [Compare Source](https://togithub.com/actions/cache/compare/v1...v2)

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[github-actions[bot]]

:tada: This PR is included in version 1.1.2 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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