Replace int index with string literals for endpoint based maps

[HunsupJung]

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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

Some maps in matter-appliace and matter-evse driver to store supported values use integer value as index.
This can cause serialization issues when storing data store. More details regarding this is captured here: IOTE-4570
This change replaces integer to use string-based literal.

Summary of Completed Tests

[github-actions]

Duplicate profile check: Passed - no duplicate profiles detected.

[github-actions]

Test Results

   64 files    400 suites   0s ⏱️
1 989 tests 1 989 ✅ 0 💤 0 ❌
3 429 runs  3 429 ✅ 0 💤 0 ❌

Results for commit cf0d18b.

[github-actions]

matter-appliance_coverage.xml

File	Coverage
All files	72%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-oven/init.lua	85%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-cook-top/init.lua	84%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-extractor-hood/init.lua	98%	✅
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-refrigerator/init.lua	66%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-dishwasher/init.lua	68%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/embedded-cluster-utils.lua	45%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-laundry/init.lua	69%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/init.lua	56%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-microwave-oven/init.lua	82%	❌

matter-evse_coverage.xml

File	Coverage
All files	78%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-oven/init.lua	85%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-cook-top/init.lua	84%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-extractor-hood/init.lua	98%	✅
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-refrigerator/init.lua	66%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-dishwasher/init.lua	68%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/embedded-cluster-utils.lua	45%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-laundry/init.lua	69%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/init.lua	56%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-appliance/src/matter-microwave-oven/init.lua	82%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-evse/src/init.lua	79%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-evse/src/embedded_cluster_utils.lua	70%	❌

Minimum allowed coverage is 90%

Generated by 🐒 cobertura-action against cf0d18b