Point pre-release install pins at 2.0.0b1 (#3039) #3284

Job	Run time
checks / readme-snippets	12s
checks / docs	44s
checks / pre-commit	46s
checks / test (3.10, lowest-direct, windows-latest)	1m 44s
checks / test (3.10, locked, windows-latest)	1m 51s
checks / test (3.14, locked, windows-latest)	2m 35s
checks / test (3.13, locked, ubuntu-latest)	1m 15s
checks / test (3.11, locked, ubuntu-latest)	1m 19s
checks / test (3.13, locked, windows-latest)	1m 53s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 13s
checks / test (3.10, locked, ubuntu-latest)	1m 23s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 21s
checks / test (3.12, locked, ubuntu-latest)	1m 29s
checks / test (3.14, lowest-direct, windows-latest)	1m 47s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 15s
checks / test (3.13, lowest-direct, windows-latest)	2m 1s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 33s
checks / test (3.12, lowest-direct, windows-latest)	1m 54s
checks / test (3.12, locked, windows-latest)	1m 46s
checks / test (3.11, locked, windows-latest)	1m 32s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 19s
checks / test (3.14, locked, ubuntu-latest)	2m 25s
checks / test (3.11, lowest-direct, windows-latest)	1m 53s
all-green	2s
	35m 12s

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