feat: add subject and claims fields to AccessToken #864

Job	Run time
checks / pre-commit	34s
checks / readme-snippets	11s
checks / test (3.10, locked, ubuntu-latest)	51s
checks / test (3.10, lowest-direct, windows-latest)	2m 23s
checks / test (3.10, lowest-direct, ubuntu-latest)	52s
checks / test (3.12, locked, windows-latest)	3m 5s
checks / test (3.10, locked, windows-latest)	2m 13s
checks / test (3.11, lowest-direct, ubuntu-latest)	54s
checks / test (3.12, lowest-direct, windows-latest)	3m 42s
checks / test (3.12, locked, ubuntu-latest)	52s
checks / test (3.11, locked, ubuntu-latest)	44s
checks / test (3.11, lowest-direct, windows-latest)	2m 58s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 12s
checks / test (3.12, lowest-direct, ubuntu-latest)	53s
checks / test (3.13, lowest-direct, ubuntu-latest)	48s
checks / test (3.14, locked, windows-latest)	3m 53s
checks / test (3.14, locked, ubuntu-latest)	2m 21s
checks / test (3.14, lowest-direct, windows-latest)	3m 1s
checks / test (3.11, locked, windows-latest)	2m 29s
checks / test (3.13, lowest-direct, windows-latest)	2m 35s
checks / test (3.13, locked, windows-latest)	2m 18s
checks / test (3.13, locked, ubuntu-latest)	48s
all-green	4s
	39m 41s

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