Set xml 6.3.0 as minimum dependency

 # Changelog
 
+## 3.10.3
+
+- Set xml 6.3.0 as minimum dependency
+
 ## 3.10.2
 
 - Fix Type1 font widths

@@ -6,7 +6,7 @@ issue_tracker: https://github.com/DavBfr/dart_pdf/issues
 screenshots:
   - description: 'Example of a generated document'
     path: example.jpg
-version: 3.10.2
+version: 3.10.3
 
 environment:
   sdk: ">=2.18.0 <4.0.0"
@@ -20,7 +20,7 @@ dependencies:
   meta: ">=1.3.0 <2.0.0"
   path_parsing: ">=0.2.0 <2.0.0"
   vector_math: ^2.1.0
-  xml: ">=6.0.1 <7.0.0"
+  xml: ">=6.3.0 <7.0.0"
 
 dev_dependencies:
   flutter_lints: ^2.0.0