Update stale.yml (#4902)

Labels names updated. Not sure if the spaces in label's names are going to work.

.github/stale.yml

@@ -12,12 +12,9 @@ onlyLabels: []
 
 # Issues or Pull Requests with these labels will never be considered stale. Set to `[]` to disable
 exemptLabels:
-  - pinned
-  - security
-  - "to be implemented"
-  - "for reference"
-  - "move to PR"
-  - "enhancement"
+  - "Type: For reference"
+  - "Type: To be implemented"
+  - "Type: Feature request"
 
 # Set to true to ignore issues in a project (defaults to false)
 exemptProjects: false
@@ -29,7 +26,7 @@ exemptMilestones: false
 exemptAssignees: false
 
 # Label to use when marking as stale
-staleLabel: stale
+staleLabel: Status: Stale
 
 # Comment to post when marking as stale. Set to `false` to disable
 markComment: >