feat: added Linux Mint Support

[fkonradmain]

Added Linux Mint support.

Following Problems induced changes:

1. the codename for name: Debian | Add Tailscale Deb would point to wilma but it should be noble (viriginia -> jammy, etc. respectively)
   Solution:

   • introduction of a mapping dict tailscale_debian_release, that replaces sub distro codenames to parent distro code names.
   • added Value for codename when calling ansible.builtin.apt_repository, but only if the codename has to be overridden

2. Linux Mint was not among the list of supported operating systems
   Solution: added entries for Linux Mint at tailscale_debian_family_distros

3. URLs would include linux mint or wilma instead of ubuntu and noble (e.g. https://pkgs.tailscale.com/stable/linux mint/wilma.noarmor.gpg instead of https://pkgs.tailscale.com/stable/ubuntu/noble.noarmor.gpg)
   Solution:

   • also added entries for Linux mint at tailscale_debian_distro
   • added functionality to actually look up table values from tailscale_debian_distro with automatic fallback to ansible_distribution

Currently supported:

• Linux Mint 22

Tested on:

• Linux Mint 22
• Debian 12

Closes #516

[artis3n]

Thank you for submitting this PR!

In order to add a new supported distro, the following additional steps need to be added:

1. Update Galaxy metadata (https://github.com/artis3n/ansible-role-tailscale/blob/main/meta/main.yml#L11)
2. Build a testable Molecule container for the distro (e.g. https://github.com/geerlingguy/docker-ubuntu2404-ansible and https://github.com/artis3n/docker-rhel9-ansible)
3. Ensure the test suite runs successfully on the container (https://github.com/artis3n/ansible-role-tailscale?tab=readme-ov-file#development-and-contributing) (MOLECULE_DISTRO=your-distro-here make test-all)
4. Add the container to the CI suite (https://github.com/artis3n/ansible-role-tailscale/blob/main/.github/workflows/pull_request_target.yml#L26)