fix: add 'invalid_target' to AuthorizationErrorCode (RFC 8707) #2179

Job	Run time
checks / pre-commit	40s
checks / readme-snippets	15s
checks / test (3.10, locked, ubuntu-latest)	53s
checks / test (3.10, lowest-direct, ubuntu-latest)	57s
checks / test (3.11, lowest-direct, windows-latest)	2m 37s
checks / test (3.11, locked, ubuntu-latest)	50s
checks / test (3.10, locked, windows-latest)	2m 22s
checks / test (3.10, lowest-direct, windows-latest)	2m 44s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 1s
checks / test (3.12, locked, ubuntu-latest)	51s
checks / test (3.12, locked, windows-latest)	3m 23s
checks / test (3.13, lowest-direct, ubuntu-latest)	53s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 19s
checks / test (3.11, locked, windows-latest)	2m 21s
checks / test (3.13, locked, ubuntu-latest)	48s
checks / test (3.13, lowest-direct, windows-latest)	2m 51s
checks / test (3.12, lowest-direct, windows-latest)	3m 33s
checks / test (3.12, lowest-direct, ubuntu-latest)	56s
checks / test (3.14, locked, windows-latest)	3m 35s
checks / test (3.13, locked, windows-latest)	2m 34s
checks / test (3.14, locked, ubuntu-latest)	2m 25s
checks / test (3.14, lowest-direct, windows-latest)	2m 35s
all-green	4s
	40m 27s

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