chore: update System.Security.Cryptography.Xml to 8.0.3 (#518)

Author: jonathanedey

FirebaseAdmin/FirebaseAdmin.Snippets/FirebaseAdmin.Snippets.csproj

@@ -14,7 +14,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.2.0" />
     <PackageReference Include="System.Collections.Immutable" Version="8.0.0" />
     <PackageReference Include="System.Text.Json" Version="8.0.5" /> 
-    <PackageReference Include=" System.Security.Cryptography.Xml" Version="8.0.2" />
+    <PackageReference Include="System.Security.Cryptography.Xml" Version="8.0.3" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
     <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
   </ItemGroup>