Make CuPy APIs compatible with NumPy 2.0 🚀 Ref: #8269

Major tasks include:

• New Type Promotion Rules for Python scalars (NEP 50)
• Python API Cleanup for NumPy 2.0 (NEP 52)
• Adopting Array API Compatibility in the main NumPy namespace (NEP 56)
• Adding CIs with NumPy 2.x series.
• Deactivates tests for data-type compatibility with NumPy 1.x series.
• Removes testing.with_requires("numpy>=2.0") introduced due to data-type mismatch.
• Removes skips with XXX comments