Point pre-release install pins at 2.0.0b1 #3281

Job	Run time
checks / pre-commit	53s
checks / readme-snippets	13s
checks / docs	41s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 26s
checks / test (3.10, lowest-direct, windows-latest)	1m 52s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 20s
checks / test (3.10, locked, ubuntu-latest)	1m 26s
checks / test (3.10, locked, windows-latest)	1m 53s
checks / test (3.11, lowest-direct, windows-latest)	1m 52s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 28s
checks / test (3.14, locked, ubuntu-latest)	2m 18s
checks / test (3.13, lowest-direct, windows-latest)	2m 16s
checks / test (3.11, locked, windows-latest)	1m 50s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 24s
checks / test (3.11, locked, ubuntu-latest)	1m 11s
checks / test (3.14, lowest-direct, windows-latest)	1m 41s
checks / test (3.12, lowest-direct, windows-latest)	2m 8s
checks / test (3.14, locked, windows-latest)	2m 48s
checks / test (3.12, locked, windows-latest)	2m 1s
checks / test (3.13, locked, ubuntu-latest)	1m 14s
checks / test (3.12, locked, ubuntu-latest)	1m 41s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 3s
checks / test (3.13, locked, windows-latest)	1m 53s
all-green	4s
	36m 36s

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