SNOW-1754876: Fix inconsistent case in StructFields for structured types #12281

Job	Run time
Check linting	2m 1s
Type Checking	31s
Build Wheel File	8s
Build Doc	1m 40s
Test Enable CTE Optimization py-ubuntu-latest-64-cores-3.9-aws	7m 2s
Test modin-macos-latest-3.9-aws	38m 15s
Test py-macos-latest-3.9-aws	14m 35s
Test modin-windows-latest-64-cores-3.11-gcp	39m 35s
Test Local Testing Module py-macos-latest-3.8	15m 8s
Test py-windows-latest-64-cores-3.11-gcp	15m 36s
Test modin-ubuntu-latest-64-cores-3.9-aws	28m 29s
Test modin extra without pandas extra py-macos-3.9-aws.	1m 32s
Test Local Testing Module py-macos-latest-3.9	14m 42s
Test modin-ubuntu-latest-64-cores-3.10-azure	26m 10s
Test py-ubuntu-latest-64-cores-3.9-aws	7m 2s
Test Local Testing Module py-macos-latest-3.10	10m 30s
Test Local Testing Module py-macos-latest-3.11	14m 27s
Test py-ubuntu-latest-64-cores-3.10-azure	6m 42s
Test Snowpandas Multithreading py-ubuntu-latest-64-cores-3.9-aws	2m 40s
Test Local Testing Module py-windows-latest-3.8	7m 3s
Test Snowpark Multithreading py-ubuntu-latest-64-cores-3.9-aws	9m 14s
Test Local Testing Module py-windows-latest-3.9	7m 0s
Test Local Testing Module py-windows-latest-3.10	7m 17s
Test Local Testing Module py-windows-latest-3.11	7m 24s
Test Local Testing Module py-ubuntu-latest-3.8	8m 18s
Test Local Testing Module py-ubuntu-latest-3.9	7m 57s
Test Local Testing Module py-ubuntu-latest-3.10	8m 11s
Test Local Testing Module py-ubuntu-latest-3.11	7m 20s
Combine coverage	1m 35s
	5h 18m 4s

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