chore(deps): update actions/attest-build-provenance action to v2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/attest-build-provenance	action	major	v1.4.4 -> v2.0.0

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Release Notes

actions/attest-build-provenance (actions/attest-build-provenance)

v2.0.0

Compare Source

The attest-build-provenance action now supports attesting multiple subjects simultaneously. When identifying multiple subjects with the subject-path input a single attestation is created with references to each of the supplied subjects, rather than generating separate attestations for each artifact. This reduces the number of attestations that you need to create and manage.

What's Changed

• Bump cross-spawn from 7.0.3 to 7.0.6 by @​dependabot in https://github.com/actions/attest-build-provenance/pull/319
• Prepare v2.0.0 release by @​bdehamer in https://github.com/actions/attest-build-provenance/pull/321
  • Bump actions/attest from 1.4.1 to 2.0.0 (w/ multi-subject attestation support)

Full Changelog: actions/attest-build-provenance@v1.4.4...v2.0.0

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