feat(auth): add subject field to AccessToken #1870

Job	Run time
checks / pre-commit	35s
checks / readme-snippets	13s
checks / test (3.10, locked, windows-latest)	2m 45s
checks / test (3.11, lowest-direct, windows-latest)	2m 35s
checks / test (3.11, locked, ubuntu-latest)	53s
checks / test (3.11, lowest-direct, ubuntu-latest)	52s
checks / test (3.10, lowest-direct, ubuntu-latest)	55s
checks / test (3.10, lowest-direct, windows-latest)	2m 20s
checks / test (3.12, locked, ubuntu-latest)	58s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 0s
checks / test (3.13, lowest-direct, windows-latest)	2m 38s
checks / test (3.13, lowest-direct, ubuntu-latest)	51s
checks / test (3.10, locked, ubuntu-latest)	54s
checks / test (3.12, locked, windows-latest)	3m 23s
checks / test (3.12, lowest-direct, windows-latest)	3m 43s
checks / test (3.11, locked, windows-latest)	2m 34s
checks / test (3.13, locked, windows-latest)	2m 36s
checks / test (3.14, locked, ubuntu-latest)	2m 24s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 16s
checks / test (3.14, lowest-direct, windows-latest)	2m 1s
checks / test (3.14, locked, windows-latest)	3m 0s
checks / test (3.13, locked, ubuntu-latest)	51s
all-green	5s
	39m 22s

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