Update thiserror requirement from 1.0 to 2.0 #405

Job	Run time
Clippy	1m 22s
Build Example Application UIs (stocks_simulated/ui, npm install && npm run build)	20s
Check (windows-latest)	3m 53s
Check (ubuntu-latest)	57s
Code Coverage	24m 48s
Documentation	1m 0s
Check (macos-latest)	1m 11s
Rustfmt	15s
Test (windows-latest)	6m 25s
Test (ubuntu-latest)	2m 43s
Test (macos-latest)	2m 35s
	45m 29s

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