Add support for more architectures and update install script

[DewaldDeJager]

Updates made to release pipeline:

• Save version and repo name in variables so they can easily be changed
• Lowercase the repo name so that it works for users with uppercase letters in their usernames
• Add support for Linux/x86, Linux/ARMv7, macOS/ARM64, Windows/x86
• Update the names of the executables to include the version and architecture and the .exe suffix for Windows
• Use a glob pattern for selecting executable files to publish on the release
• Simplify the Docker build and release steps

Updates made to install script:

• Update the OS names so they match the executable names published on the release
• Check the OS architecture so the correct binary can be downloaded
• Download binaries to a temporary folder and clean up when the script exits
• Use cURL to download the binary instead of wget so that only one tool is needed

Note: If you want to test the install script, be sure to update the URL with my username since the binaries in this repo won't match the expected naming convention yet.

[DewaldDeJager]

You can see an example release with all the executables here: https://github.com/DewaldDeJager/netlify-dynamic-dns/releases/tag/v3.0.2
An example package with the Docker image here: https://github.com/DewaldDeJager/netlify-dynamic-dns/pkgs/container/netlify-dynamic-dns
An example run of the release workflow here: https://github.com/DewaldDeJager/netlify-dynamic-dns/actions/runs/5354011117