[ci] make wait-ssh the default behavior

I have no idea why I added this option or why we would want it to not be set :/

Fixes #74777

Pull Request resolved: https://github.com/pytorch/pytorch/pull/74816

Approved by: https://github.com/seemethere, https://github.com/janeyx99, https://github.com/malfet, https://github.com/cpuhrsch

.github/actions/teardown-linux/action.yml

@@ -3,8 +3,8 @@ name: Teardown Linux
 description: Stuff that should always run at the end of a linux job
 
 inputs:
-  wait-ssh:
-    description: If set, wait for ssh to drain before tearing down
+  skip-wait-ssh:
+    description: If set, don't wait for ssh to drain before tearing down
     required: false
     default: ""
 
@@ -15,7 +15,7 @@ runs:
       # TODO working-directory: !{{ pytorch_directory }}
       # Always hold for active ssh sessions
       shell: bash
-      if: inputs.wait-ssh != ''
+      if: inputs.skip-wait-ssh == ''
       run: .github/scripts/wait_for_ssh_to_drain.sh
 
     - name: Kill containers, clean up images

.github/workflows/_rocm-test.yml

@@ -162,4 +162,4 @@ jobs:
         uses: pytorch/pytorch/.github/actions/teardown-linux@master
         if: always()
         with:
-          wait-ssh: false
+          skip-wait-ssh: true