Updated IdentityModel to v7.

Author: prochnowc

Http/src/AppCoreNet.Extensions.Http.Authentication.OAuth/AppCoreNet.Extensions.Http.Authentication.OAuth.csproj

@@ -13,7 +13,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="IdentityModel" Version="6.0.0" />
+    <PackageReference Include="IdentityModel" Version="7.0.0" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFrameworks)' == 'net8.0'">