We are upgrading Vmware 6.7 to 7.0 using offline package VMware-ESXi-7.0.3-20842708-HPE-703.0.0.11.1.5.9-Jan2023-Synergy-depot.zip but failing giving below error.

Installation Error]
('HPE_bootbank_sut_701.4.0.0.6-1OEM.701.0.0.16850804', 'Could not find a trusted signer.')
vibs = HPE_bootbank_sut_701.4.0.0.6-1OEM.701.0.0.16850804
Ours server is synergy server 480 G10 so using HPE customized package .Kindly help us to solve

currently its with Partner Support configuration.

Could see in vib folder which we uploaded file HPE_bootbank_sut_701.4.0.0.6-1OEM.701.0.0.16850804 .