chore(deps): update dependency plugin_platform_interface to v2.1.8

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
plugin_platform_interface (source)	dev_dependencies	patch	2.1.4 -> 2.1.8

---

Release Notes

flutter/packages (plugin_platform_interface)

v2.1.8

Compare Source

• Fixes new lint warnings.

v2.1.7

Compare Source

• Changes MockPlatformInterfaceMixin to a mixin class for better
  compatibility with projects that have a minumum Dart SDK version of 3.0.
• Updates minimum supported SDK version to Dart 3.0.

v2.1.6

Compare Source

• Adds pub topics to package metadata.
• Updates minimum supported SDK version to Flutter 3.7/Dart 2.19.

v2.1.5

Compare Source

• Updates README to improve example and discuss base.
• Updates minimum Flutter version to 3.3.

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ 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 has been generated by Mend Renovate. View repository job log here.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3c3e491) 98.02% compared to head (648eb24) 98.02%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #65   +/-   ##
=======================================
  Coverage   98.02%   98.02%           
=======================================
  Files           9        9           
  Lines         152      152           
=======================================
  Hits          149      149           
  Misses          3        3           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.