Add the missing `resource_class` key in the update_s3_htmls job (#41000)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/40998.
Actually I don't know why it is needed. But without it, the build won't start. See my rerun of the update_s3_html3 job: https://app.circleci.com/pipelines/github/pytorch/pytorch/187926/workflows/432dbe98-ca2f-484d-acc7-0482cb3fd01f/jobs/6121551/steps.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/41000
Differential Revision: D22390654
Pulled By: malfet
fbshipit-source-id: 0f296c8a82fa92d5382f883bca951e6576f75b15
