refactor!: change `Session` cookies from `dict` to `SessionCookies` w… #233

Job	Run time
Prepare release metadata	14s
Wait for code checks to pass	1m 50s
Update changelog / bump_and_update_changelog	17s
Publish to PyPI	46s
build_and_deploy_docs / build_and_deploy_docs	1m 16s
	4m 23s

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