Update dashmap requirement from 5.4.0 to 6.1.0

[dependabot[bot]]

Updates the requirements on dashmap to permit the latest version.

Release notes

Sourced from dashmap's releases.

v6.1.0

• xacrimon/dashmap#308

Commits

• f2d248e v6.1.0
• da6ac5e Add typesize::TypeSize implementation for DashMap/DashSet (#308)
• 633aadb v6.0.1
• d5c8be6 add shrink_to_fit test
• 488dbfa fix deadlock in shrink_to_fit (#305)
• 458238c v6.0.0
• 1e3df1a v6.0.0-rc.1
• bdb86b0 Merge branch 'arthurprs-small-optimizations'
• 4cdfc39 fix: merge errors
• 74b34f8 Merge branch 'small-optimizations' of github.com:arthurprs/dashmap into arthu...
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot show ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[dependabot[bot]]

The following labels could not be found: auto-dependencies.

[dependabot[bot]]

Looks like dashmap is up-to-date now, so this is no longer needed.