Update dependency twilio-ruby to v6.4.0

[renovate]

This PR contains the following updates:

Package	Update	Change
twilio-ruby	minor	6.3.1 -> 6.4.0

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Release Notes

twilio/twilio-ruby (twilio-ruby)

v6.4.0

Compare Source

Library - Fix

• PR #​673: remove ruby version. Thanks to @​kridai!
• PR #​672: revert setting ruby version. Thanks to @​kridai!
• PR #​671: fix the headers issue. Thanks to @​kridai!

Insights

• Normalize annotations parameters in list summary api to be prefixed

Numbers

• Change Bulk_hosted_sid from BHR to BH prefix in HNO and dependent under version /v2 API's. (breaking change)
• Added parameter target_account_sid to portability and account_sid to response body

Verify

• Remove beta feature flag to list attempts API.
• Remove beta feature flag to verifications summary attempts API.

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Configuration

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