Add sso subdict to sso auth events #1340

Job	Run time
Test Python 3.9	22s
Test Python 3.8	26s
Test Python 3.13	26s
Test Python 3.12	27s
Test Python 3.11	22s
Test Python 3.14	47s
Test Python 3.10	22s
Smoke test (Python ${{ matrix.python }})	-1s
	3m 11s

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