Add fineDustSensor as optional capability for air purifiers

[ctowns]

Check all that apply

Type of Change

• WWST Certification Request
  • If this is your first time contributing code:
    • I have reviewed the README.md file
    • I have reviewed the CODE_OF_CONDUCT.md file
    • I have signed the CLA
  • I plan on entering a WWST Certification Request or have entered a request through the WWST Certification console at developer.smartthings.com
• Bug fix
• New feature
• Refactor

Checklist

• I have performed a self-review of my code
• I have commented my code in hard-to-understand areas
• I have verified my changes by testing with a device or have communicated a plan for testing
• I am adding new behavior, such as adding a sub-driver, and have added and run new unit tests to cover the new behavior

Description of Change

Summary of Completed Tests

[github-actions]

Duplicate profile check: Passed - no duplicate profiles detected.

[github-actions]

Invitation URL:
https://bestow-regional.api.smartthings.com/invite/gpjGN0nRavl4

[github-actions]

Test Results

   67 files  ±0    443 suites  ±0   0s ⏱️ ±0s
2 264 tests ±0  2 264 ✅ ±0  0 💤 ±0  0 ❌ ±0 
3 862 runs  ±0  3 862 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit ddb6ada. ± Comparison against base commit 7c43811.

[github-actions]

File	Coverage
All files	88%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-thermostat/src/init.lua	88%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-thermostat/src/embedded-cluster-utils.lua	95%	✅

Minimum allowed coverage is 90%

Generated by 🐒 cobertura-action against ddb6ada

[hcarter-775]

Hey @ctowns can you merge this when you have a chance?