Update stale.yml

Signed-off-by: Adam Warner <me@adamwarner.co.uk>

.github/workflows/stale.yml

@@ -24,7 +24,7 @@ jobs:
         days-before-close: 5
         stale-issue-message: 'This issue is stale because it has been open 30 days with no activity. Please comment or update this issue or it will be closed in 5 days.'
         stale-issue-label: '${{ env.stale_label }}'
-        exempt-issue-labels: 'pinned, Fixed in next release, bug, never-stale, documentation, investigating, v6-tracking'
+        exempt-issue-labels: 'pinned, Fixed in next release, bug, never-stale, documentation, investigating, v6'
         exempt-all-issue-assignees: true
         operations-per-run: 300
         close-issue-reason: 'not_planned'