Support RFC 8693 token exchange for enterprise IdP flows (SEP-990) #3079

Job	Run time
checks / pre-commit	45s
checks / readme-snippets	13s
checks / docs	34s
checks / test (3.14, locked, ubuntu-latest)	2m 3s
checks / test (3.11, locked, windows-latest)	1m 35s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 10s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 10s
checks / test (3.13, locked, windows-latest)	1m 44s
checks / test (3.14, locked, windows-latest)	2m 38s
checks / test (3.11, locked, ubuntu-latest)	1m 4s
checks / test (3.10, lowest-direct, windows-latest)	1m 33s
checks / test (3.13, locked, ubuntu-latest)	1m 0s
checks / test (3.11, lowest-direct, windows-latest)	1m 48s
checks / test (3.12, locked, windows-latest)	1m 39s
checks / test (3.14, lowest-direct, ubuntu-latest)	52s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 14s
checks / test (3.13, lowest-direct, windows-latest)	1m 8s
checks / test (3.12, lowest-direct, windows-latest)	1m 37s
checks / test (3.10, locked, ubuntu-latest)	1m 10s
checks / test (3.10, locked, windows-latest)	1m 37s
checks / test (3.14, lowest-direct, windows-latest)	1m 34s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 21s
checks / test (3.12, locked, ubuntu-latest)	1m 20s
all-green	3s
	30m 52s

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