chore(deps): update dependency pydantic to v2.10.3 #1182

Job	Run time
integration-tests / Plan	6s
integration-tests / Build charm (discourse-k8s)	2m 31s
integration-tests / Build rock (discourse)	31m 56s
integration-tests / Plan Image Scanning	10s
integration-tests / Integration tests / Integration tests (test_charm)	24m 59s
integration-tests / Integration tests / Integration tests (test_saml)	23m 48s
integration-tests / Integration tests / Integration tests (test_users)	22m 50s
integration-tests / Integration tests / Integration tests (test_db_migration)	27m 37s
integration-tests / Scan Image (ghcr.io-canonical-discourse-b59a4d82d70a03c93f39a2c7e70ed079d058823d-_1.0_amd64.tar)	5m 8s
integration-tests / Required Integration Test Status Checks	1s
	2h 19m 6s

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