Use Tabs sync key for operatingSystem

Author: maartenba

src/content/docs/identityserver/upgrades/identityserver4-to-duende-identityserver-v7.mdx

@@ -15,7 +15,7 @@ IdentityServer4 reached its end of life (EOL) on December 13, 2022. It is strong
 Depending on your current version of IdentityServer4, different steps may be required.
 You can determine the version of IdentityServer4 by running the `dotnet list` command at the root of your IdentityServer host project, or using NuGet tooling in Visual Studio or JetBrains Rider.
 
-<Tabs>
+<Tabs syncKey="operatingSystem">
   <TabItem label="Windows">
     <Code
       code={'dotnet list package | sls "IdentityServer4"'}