Update Rust crate dashmap to v6.2.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
dashmap	workspace.dependencies	minor	6.1.0 → 6.2.1

---

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

---

Release Notes

xacrimon/dashmap (dashmap)

v6.2.1

Compare Source

This is an interim maintenance release for the existing v6 branch before v7 can be released. This bumps the MSRV to 1.85 and updates dependencies to their latest versions.

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • Between 12:00 AM and 03:59 AM, only on Monday (* 0-3 * * 1)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[codspeed-hq]

Merging this PR will not alter performance

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

⚡ 1 improved benchmark
❌ 1 regressed benchmark
✅ 1219 untouched benchmarks

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
⚡	Simulation	chunked_varbinview_canonical_into[(100, 100)]	307.8 µs	273.2 µs	+12.65%
❌	Simulation	chunked_varbinview_opt_canonical_into[(1000, 10)]	187.6 µs	225.1 µs	-16.67%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

---

_{Comparing renovate/dashmap-6.x-lockfile (2a7314e) with develop (d71d3d3)}