build: pin PEP 517 build dependencies (#2547) #2072

Job	Run time
checks / readme-snippets	15s
checks / pre-commit	37s
checks / test (3.12, locked, ubuntu-latest)	58s
checks / test (3.13, locked, windows-latest)	2m 30s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 1s
checks / test (3.12, locked, windows-latest)	3m 17s
checks / test (3.10, locked, ubuntu-latest)	52s
checks / test (3.10, lowest-direct, ubuntu-latest)	59s
checks / test (3.13, lowest-direct, windows-latest)	3m 1s
checks / test (3.11, locked, ubuntu-latest)	51s
checks / test (3.10, locked, windows-latest)	2m 37s
checks / test (3.11, lowest-direct, windows-latest)	2m 59s
checks / test (3.10, lowest-direct, windows-latest)	2m 58s
checks / test (3.13, lowest-direct, ubuntu-latest)	57s
checks / test (3.11, locked, windows-latest)	2m 48s
checks / test (3.12, lowest-direct, windows-latest)	3m 52s
checks / test (3.13, locked, ubuntu-latest)	47s
checks / test (3.11, lowest-direct, ubuntu-latest)	52s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 14s
checks / test (3.14, lowest-direct, windows-latest)	2m 52s
checks / test (3.14, locked, ubuntu-latest)	2m 25s
checks / test (3.14, locked, windows-latest)	3m 20s
all-green	2s
	42m 4s

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