Add experimental Server Cards support (SEP-2127) #3462

Job	Run time
checks / pre-commit	53s
checks / docs	39s
checks / readme-snippets	15s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 10s
checks / test (3.10, locked, windows-latest)	2m 0s
checks / test (3.10, lowest-direct, windows-latest)	2m 23s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 24s
checks / test (3.12, locked, ubuntu-latest)	1m 13s
checks / test (3.12, lowest-direct, windows-latest)	2m 1s
checks / test (3.11, locked, windows-latest)	1m 52s
checks / test (3.11, locked, ubuntu-latest)	1m 14s
checks / test (3.11, lowest-direct, windows-latest)	1m 59s
checks / test (3.14, locked, ubuntu-latest)	1m 19s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 4s
checks / test (3.14, lowest-direct, windows-latest)	1m 56s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 21s
checks / test (3.14, locked, windows-latest)	1m 59s
checks / test (3.13, locked, windows-latest)	2m 6s
checks / test (3.12, locked, windows-latest)	2m 6s
checks / test (3.13, locked, ubuntu-latest)	1m 7s
checks / test (3.13, lowest-direct, windows-latest)	1m 49s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 17s
checks / test (3.10, locked, ubuntu-latest)	1m 32s
all-green	5s
	34m 44s

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