pytorch

b6ff0fa8 - Enable dynamically ciflow/slow so that we can run GHA slow tests on PR (#61987)

Enable dynamically ciflow/slow so that we can run GHA slow tests on PR (#61987) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/61987 This PR enables us to run slow GHA tests on PR. Steps to do (~may only take effect after this PR is merged~ works on this PR) - Add label `ciflow/slow` - Assign/unassign pytorchbot - The job should be running .github/workflows/pytorch-linux-xenial-cuda10.2-cudnn7-py3.6-gcc7.yml The above steps are manual, and after probot can do the dispatch work, the ciflow will be automated. Related meta RFC issue: #61888 Test Plan: Imported from OSS Reviewed By: driazati Differential Revision: D29832758 Pulled By: zhouzhuojie fbshipit-source-id: 64d31ef572502e62b80e6b7ac480ffcfa9f4e38b