Update gallery app package references to 8.3.260331-pull-837.1767

Author: Arlodotexe

ProjectHeads/App.Head.props

@@ -32,7 +32,7 @@
   <Choose>
     <When Condition="'$(ToolkitConvertersSourceProject)' == ''">
       <ItemGroup>
-        <PackageReference Include="CommunityToolkit.$(DependencyVariant).Converters" Version="8.2.250402"/>
+        <PackageReference Include="CommunityToolkit.$(DependencyVariant).Converters" Version="8.3.260331-pull-837.1767"/>
       </ItemGroup>
     </When>
     <!-- This is tripping up the linux build using dotnet build as we have a duplicate reference 
@@ -49,7 +49,7 @@
   <Choose>
     <When Condition="'$(ToolkitSettingsControlsSourceProject)' == ''">
       <ItemGroup>
-        <PackageReference Include="CommunityToolkit.$(DependencyVariant).Controls.SettingsControls" Version="8.2.250402"/>
+        <PackageReference Include="CommunityToolkit.$(DependencyVariant).Controls.SettingsControls" Version="8.3.260331-pull-837.1767"/>
       </ItemGroup>
     </When>
     <When Condition="'$(IsSingleExperimentHead)' == 'true' and $(MSBuildProjectName.StartsWith('SettingsControls')) == 'false'">
@@ -61,7 +61,7 @@
   <Choose>
     <When Condition="'$(ToolkitExtensionsSourceProject)' == ''">
       <ItemGroup>
-        <PackageReference Include="CommunityToolkit.$(DependencyVariant).Extensions" Version="8.2.250402"/>
+        <PackageReference Include="CommunityToolkit.$(DependencyVariant).Extensions" Version="8.3.260331-pull-837.1767"/>
       </ItemGroup>
     </When>
     <When Condition="'$(IsSingleExperimentHead)' == 'true' and $(MSBuildProjectName.StartsWith('Extensions')) == 'false'">
@@ -73,7 +73,7 @@
   <Choose>
     <When Condition="'$(ToolkitTriggersSourceProject)' == ''">
       <ItemGroup>
-        <PackageReference Include="CommunityToolkit.$(DependencyVariant).Triggers" Version="8.2.250402"/>
+        <PackageReference Include="CommunityToolkit.$(DependencyVariant).Triggers" Version="8.3.260331-pull-837.1767"/>
       </ItemGroup>
     </When>
     <When Condition="'$(IsSingleExperimentHead)' == 'true' and $(MSBuildProjectName.StartsWith('Triggers')) == 'false'">