Add github-copliot-cli as software package

[maybeec]

Feature idea

As a user, I want to easily get github copilot cli running within my ideasy

Additional context

https://github.com/features/copilot/cli

[hohwille]

See here for details:
https://raw.githubusercontent.com/github/copilot-cli/refs/heads/main/install.sh

Seems perfect for IDEasy:

  DOWNLOAD_URL="https://github.com/github/copilot-cli/releases/download/${VERSION}/copilot-${PLATFORM}-${ARCH}.tar.gz"
  CHECKSUMS_URL="https://github.com/github/copilot-cli/releases/download/${VERSION}/SHA256SUMS.txt"

We can use GitHubUrlUpdater, etc. so integration should be straight forward.