v4.0.0

Hello,

The long awaited update of setup-android.

• Migrate action to Node24 (by @TWiStErRob)
• Add and default to cmdline-tools version 20.0 ( 14742923 )
• Update CI runners (by @TWiStErRob)
• Update README.md (by @vil02)
• Update npm dependencies to solve CVE's

Incrementing major version to safeguard incase node upgrade or default cmdline-tools upgrade breaks something downstream.