The $U Products, DUAS included, are currently only compatible with TLS 1.0.
No compatibility is set on TLS 1.1/1.2
Release : 6.10
Component : DOLLAR UNIVERSE
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Upgrade to version 6.10.101 or above. These versions now support TLS 1.2 and 1.3 via OpenSSL 3.0.x (Source: https://techdocs.broadcom.com/us/en/ca-enterprise-software/intelligent-automation/dollar-universe/6-10-101/Release-Notes/third-party-software-acknowledgements.html)