[ci] try installing libgnutls to fix cert error (#65934)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/65934
see: https://github.com/pytorch/pytorch/issues/65931, this was a
suggested remediation on the linked issue
Test Plan: Imported from OSS
Reviewed By: malfet, zhouzhuojie
Differential Revision: D31313040
Pulled By: suo
fbshipit-source-id: a9e2b82a1e879962af768ed3049c73ab77394738
