prod: Deploy swh-loader-core 3.5.0 on staging

v3.4.1 is already deployed in prod and resolves https://sentry.softwareheritage.org/share/issue/c7f123114dbf4383b81ac5a8f2052c26/ ; but it's not deployed on staging yet

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Migrated from T4266 (view on Phabricator)