chore(ci): update release-drafter configurations (#848)

Add label `bug` under the Bug Fixes category

Author: puneetbehl

.github/release-drafter.yml

@@ -81,6 +81,7 @@ categories:
   - title: '🐛 Bug Fixes'
     labels:
       - 'fix'
+      - 'bug'
       - "type: improvement"
       - "type: bug"
       - "type: minor"
@@ -121,4 +122,4 @@ template: |
 
   ## Contributors
 
-  $CONTRIBUTORS
+  $CONTRIBUTORS