fix: add Unicode normalization and homoglyph detection to tool name validation #3558

Job	Run time
checks / docs	51s
checks / pre-commit	50s
checks / readme-snippets	12s
checks / test (3.10, locked, windows-latest)	2m 7s
checks / test (3.11, lowest-direct, windows-latest)	1m 53s
checks / test (3.11, locked, ubuntu-latest)	1m 28s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 21s
checks / test (3.10, locked, ubuntu-latest)	1m 27s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 26s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 24s
checks / test (3.10, lowest-direct, windows-latest)	1m 55s
checks / test (3.12, lowest-direct, windows-latest)	1m 53s
checks / test (3.14, locked, ubuntu-latest)	1m 27s
checks / test (3.13, locked, windows-latest)	1m 50s
checks / test (3.14, locked, windows-latest)	2m 2s
checks / test (3.13, locked, ubuntu-latest)	1m 18s
checks / test (3.11, locked, windows-latest)	1m 53s
checks / test (3.12, locked, ubuntu-latest)	1m 39s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 22s
checks / test (3.13, lowest-direct, windows-latest)	2m 0s
checks / test (3.12, locked, windows-latest)	1m 49s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 20s
checks / test (3.14, lowest-direct, windows-latest)	1m 52s
all-green	4s
	35m 23s

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