Properly persist dynamic core metadata #2185

Job	Run time
CLI responsiveness with latest Python	2m 12s
Downstream builds with Python 3.8	35s
Downstream builds with Python 3.9	35s
Python 3.8 on Linux	3m 3s
Downstream builds with Python 3.10	42s
Python 3.9 on Linux	2m 58s
Downstream builds with Python 3.11	33s
Python 3.10 on Linux	3m 34s
Downstream builds with Python 3.12	37s
Python 3.11 on Linux	2m 57s
Python 3.12 on Linux	3m 14s
Python 3.8 on Windows	7m 8s
Python 3.9 on Windows	7m 7s
Python 3.10 on Windows	7m 11s
Python 3.11 on Windows	6m 12s
Python 3.12 on Windows	6m 4s
Python 3.8 on macOS	4m 26s
Python 3.9 on macOS	3m 40s
Python 3.10 on macOS	3m 25s
Python 3.11 on macOS	3m 26s
Python 3.12 on macOS	4m 49s
Report coverage	32s
check	1s
	1h 15m 1s

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