Rename InternalError into EdgeCaseError #433

Job	Run time
Test pre-commit console encoding	37s
Test Python 3.8 (ubuntu-latest)	56s
Test Python 3.9 (ubuntu-latest)	1m 1s
Test Python 3.10 (ubuntu-latest)	1m 2s
Test Python 3.11 (ubuntu-latest)	53s
Test Python 3.12 (ubuntu-latest)	18s
Test Python 3.8 (windows-latest)	2m 19s
Test Python 3.9 (windows-latest)	2m 55s
Test Python 3.10 (windows-latest)	2m 39s
Test Python 3.11 (windows-latest)	2m 45s
Test Python 3.12 (windows-latest)	55s
Test Python 3.8 (macOS-latest)	1m 25s
Test Python 3.9 (macOS-latest)	1m 15s
Test Python 3.10 (macOS-latest)	55s
Test Python 3.11 (macOS-latest)	44s
Test Python 3.12 (macOS-latest)	17s
	20m 56s

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