Netcode for the GameObjects package does not update and gives "Cannot implicitly convert type 'ulong' to 'int’" errors when upgrading a project

Steps to reproduce:

1.  Create a new project on any version older than 6000.5.0a1
2.  Install Netcode for GameObjects 2.6.0 version
3.  Upgrade the project to Unity 6000.5.0a1
4. Observe the console
5. Observe in Package Manager window that the Netcode package did not update to 2.7.0

Actual results: 
Package does not get updated even tho a new version is available when upgrading project.
Getting errors:

“Library/PackageCache/com.unity.netcode.gameobjects@7e60351bfc70/Runtime/SceneManagement/NetworkSceneManager.cs(3189,39): error CS0266: Cannot implicitly convert type 'ulong' to 'int'. An explicit conversion exists (are you missing a cast?)”

Expected results: 
Package is updated without issues

Reproducible with versions: 
Netcode for GameObjects 2.6.0:
6000.5.0a1

Not reproducible with versions: 
6000.2.12f1, 6000.3.0b10, 6000.4.0a4 (package still does not upgrade, but no errors in the console)

Tested on (OS): 
MacOS Sequoia 15.7.1

Notes:

•  The errors only appear in 6000.5.0a1