Deployment Samples use old version of the packages that throw compilation errors in the new Unity versions

How to reproduce:
1. Create a new Unity project and install the Multiplayer Services package
2. In the Package Manager, go to All Samples -> Leaderboards Deployment -> Import
3. Observe the Console

Expected results: No compilation errors are thrown
Actual results: Compilation error is thrown because the sample installs the older version of the Leadrboards package

Reproducible with: 1.7.2 (6000.4.12f1, 6000.5.0b11, 6000.6.0a7)

Reproducible on: macOS Tahoe 26 (M1)
Not reproducible on: No other environment tested