[TrimmableTypeMap][Core A] Use version variable for System.Reflection.Metadata

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: simonrozsival

eng/Versions.props

@@ -16,6 +16,7 @@
     <MicrosoftTemplateEngineAuthoringTasksPackageVersion>11.0.100-preview.1.26076.102</MicrosoftTemplateEngineAuthoringTasksPackageVersion>
     <MicrosoftDotNetCecilPackageVersion>0.11.5-preview.26076.102</MicrosoftDotNetCecilPackageVersion>
     <SystemIOHashingPackageVersion>9.0.4</SystemIOHashingPackageVersion>
+    <SystemReflectionMetadataPackageVersion>9.0.3</SystemReflectionMetadataPackageVersion>
     <!-- Previous .NET Android version -->
     <MicrosoftNETSdkAndroidManifest100100PackageVersion>36.1.30</MicrosoftNETSdkAndroidManifest100100PackageVersion>
     <AndroidNetPreviousVersion>$(MicrosoftNETSdkAndroidManifest100100PackageVersion)</AndroidNetPreviousVersion>

src/Microsoft.Android.Sdk.TrimmableTypeMap/Microsoft.Android.Sdk.TrimmableTypeMap.csproj

@@ -11,7 +11,7 @@
 
   <ItemGroup>
     <PackageReference Include="System.IO.Hashing" Version="$(SystemIOHashingPackageVersion)" />
-    <PackageReference Include="System.Reflection.Metadata" Version="9.0.3" />
+    <PackageReference Include="System.Reflection.Metadata" Version="$(SystemReflectionMetadataPackageVersion)" />
     <InternalsVisibleTo Include="Microsoft.Android.Sdk.TrimmableTypeMap.Tests" />
     <InternalsVisibleTo Include="Microsoft.Android.Sdk.TrimmableTypeMap.IntegrationTests" />
   </ItemGroup>