segger-jlink: 796b -> 796k, segger-jlink-headless: init, plus misc changes

[h7x4]

Description of changes

Miscellaneous fixes to segger-jlink. I have added a headless variant of the package that excludes the qt4 bundle, removing the need for adding it to the list of insecure packages. The headless variant is exposed as a toplevel attribute with the -headless suffix.

As for other changes, I've added a changelog link, added myself to maintainers, added an update script and bumped the package version

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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[StarGate01]

Does nrfconnect work with the new segger-jlink-headless as a dependency? Then I suggest to use that, see https://github.com/NixOS/nixpkgs/blob/nixos-unstable/pkgs/by-name/nr/nrfconnect/package.nix#L23 . After this PR is tested and merged, I will also update #214195 .

[h7x4]

Does nrfconnect work with the new segger-jlink-headless as a dependency?

I'm not entirely sure tbh, but I think so. It's a suite of tools made for the nordicsemi boards, and while they need jlink to probe the devkits, it would be weird if they embedded usage of segger's gui tools within their own.

[nixos-discourse]

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/prs-ready-for-review/3032/4189

[SuperSandro2000]

well made