Add experimental Server Cards support (SEP-2127) #2928

Job	Run time
checks / readme-snippets	11s
checks / pre-commit	45s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 9s
checks / test (3.10, lowest-direct, windows-latest)	1m 28s
checks / test (3.10, locked, windows-latest)	1m 37s
checks / test (3.13, locked, ubuntu-latest)	1m 0s
checks / test (3.13, locked, windows-latest)	1m 22s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 3s
checks / test (3.14, lowest-direct, windows-latest)	2m 3s
checks / test (3.12, lowest-direct, windows-latest)	1m 26s
checks / test (3.14, locked, windows-latest)	2m 23s
checks / test (3.12, locked, ubuntu-latest)	1m 2s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 9s
checks / test (3.14, locked, ubuntu-latest)	2m 0s
checks / test (3.10, locked, ubuntu-latest)	1m 2s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 6s
checks / test (3.13, lowest-direct, windows-latest)	1m 53s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 1s
checks / test (3.11, locked, ubuntu-latest)	1m 4s
checks / test (3.11, lowest-direct, windows-latest)	1m 34s
checks / test (3.11, locked, windows-latest)	1m 38s
checks / test (3.12, locked, windows-latest)	1m 27s
all-green	5s
	29m 28s

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