chore(deps): update dependency pydantic to v2.10.4 #1186

Job	Run time
integration-tests / Plan	5s
integration-tests / Build charm (discourse-k8s)	2m 31s
integration-tests / Build rock (discourse)	30m 14s
integration-tests / Plan Image Scanning	4s
integration-tests / Integration tests / Integration tests (test_charm)	19m 58s
integration-tests / Integration tests / Integration tests (test_saml)	15m 20s
integration-tests / Integration tests / Integration tests (test_users)	13m 44s
integration-tests / Integration tests / Integration tests (test_db_migration)	16m 29s
integration-tests / Scan Image (ghcr.io-canonical-discourse-b59a4d82d70a03c93f39a2c7e70ed079d058823d-_1.0_amd64.tar)	5m 0s
integration-tests / Required Integration Test Status Checks	1s
	1h 43m 26s

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