v0.73.0

• sigstore: add function to verify image attestations by @crazy-max in #932
• sigstore: test signAttestationManifests by @crazy-max in #933
• build(deps): bump @actions/artifact from 5.0.1 to 5.0.2 in #926
• build(deps): bump @actions/cache from 5.0.1 to 5.0.2 in #925
• build(deps): bump @actions/core from 2.0.1 to 2.0.2 in #922
• build(deps): bump @actions/github from 6.0.1 to 7.0.0 in #923
• build(deps): bump @actions/http-client from 3.0.0 to 3.0.1 in #921
• build(deps): bump @actions/tool-cache from 2.0.2 to 3.0.0 in #924

Full Changelog: v0.72.0...v0.73.0