chore: bump version to 0.0.15+6 in pubspec.yaml

pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: "none" # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 0.0.14+5
+version: 0.0.15+6
 
 environment:
   sdk: ">=3.3.4 <4.0.0"