chore(deps): bump jwt in /samples/react-native

Bump jwt from 2.9.3 to 2.10.3 to fix high severity empty-key HMAC bypass vulnerability.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: antonis

samples/react-native/Gemfile.lock

@@ -45,7 +45,7 @@ GEM
     aws-sigv4 (1.12.1)
       aws-eventstream (~> 1, >= 1.0.2)
     babosa (1.0.4)
-    base64 (0.2.0)
+    base64 (0.3.0)
     benchmark (0.4.0)
     bigdecimal (3.1.9)
     claide (1.1.0)
@@ -224,7 +224,7 @@ GEM
       concurrent-ruby (~> 1.0)
     jmespath (1.6.2)
     json (2.7.3)
-    jwt (2.9.3)
+    jwt (2.10.3)
       base64
     logger (1.7.0)
     memoist (0.16.2)