exclude issues with the kind/feature label from stale bot process

Signed-off-by: Guillaume Lours <[email protected]>

.github/stale.yml

@@ -12,7 +12,7 @@ onlyLabels: []
 
 # Issues or Pull Requests with these labels will never be considered stale. Set to `[]` to disable
 exemptLabels:
-  - "enhancement ✨"
+  - "kind/feature"
 
 # Set to true to ignore issues in a project (defaults to false)
 exemptProjects: false