build(deps): bump Swatinem/rust-cache from 2.7.7 to 2.8.1#45

dependabot[bot] wants to merge 1 commit intomainlinkerd/drain-rs:mainfrom

dependabot/github_actions/Swatinem/rust-cache-2.8.1linkerd/drain-rs:dependabot/github_actions/Swatinem/rust-cache-2.8.1Copy head branch name to clipboard