v2.21.1

RootedTrees v2.21.1

Diff since v2.21.0

Merged pull requests:

• Bump crate-ci/typos from 1.17.2 to 1.18.0 (#158) (@dependabot[bot])
• Bump codecov/codecov-action from 3 to 4 (#159) (@dependabot[bot])
• ci: explicitly specify token for codecov (#160) (@thazhemadam)
• Bump crate-ci/typos from 1.18.0 to 1.18.2 (#161) (@dependabot[bot])
• Fix formatter to old version (#163) (@ranocha)
• Bump crate-ci/typos from 1.18.2 to 1.19.0 (#164) (@dependabot[bot])
• Bump julia-actions/setup-julia from 1 to 2 (#165) (@dependabot[bot])
• Bump crate-ci/typos from 1.19.0 to 1.20.4 (#166) (@dependabot[bot])