✅ Label bug reports

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,6 +1,7 @@
 name: 🪲 Report a bug
 description: Create a bug report to help improve Marlin Firmware
 title: "[BUG] (bug summary)"
+labels: 'Bug: Potential ?'
 body:
   - type: markdown
     attributes:

.github/workflows/clean-closed.yml

@@ -23,6 +23,7 @@ jobs:
           - "S: Please Merge"
           - "S: Please Test"
           - "help wanted"
+          - "Bug: Potential ?"
           - "Needs: Discussion"
           - "Needs: Documentation"
           - "Needs: More Data"