Rename InternalError into EdgeCaseError #434

Job	Run time
Test Python 3.8 (ubuntu-latest)	55s
Test pre-commit console encoding	39s
Test Python 3.9 (ubuntu-latest)	56s
Test Python 3.10 (ubuntu-latest)	57s
Test Python 3.11 (ubuntu-latest)	53s
Test Python 3.12 (ubuntu-latest)	19s
Test Python 3.8 (windows-latest)	2m 49s
Test Python 3.9 (windows-latest)	2m 57s
Test Python 3.10 (windows-latest)	2m 47s
Test Python 3.11 (windows-latest)	2m 36s
Test Python 3.12 (windows-latest)	59s
Test Python 3.8 (macOS-latest)	1m 23s
Test Python 3.9 (macOS-latest)	1m 3s
Test Python 3.10 (macOS-latest)	59s
Test Python 3.11 (macOS-latest)	44s
Test Python 3.12 (macOS-latest)	15s
	21m 11s

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