Add support for ARM64

[potvinp]

Describe what you would like to achieve
Currently, BGPalerter is only released with support for the AMD64 platform. It would be wise to implement releases for the ARM64 platform due to the increasing popularity of ARM64-based devices and cloud services.

Provide an example
For the docker build at least, the only change required in the Dockerfile appears to be to utilize arm64v8/node:18.19.0-alpine as the source image for the ARM64 version instead of the node:18.19.0-alpine image it currently uses which is limited to AMD64.

I have made this change myself to allow BGPalerter to operate on an ARM64-based cloud server, which appears to be working without issues.

Your information
AS52210
Accuris Technologies Ltd.

[massimocandela]

Hi @potvinp,

Since it looks like you already worked on this. Please, provide a pull request with the docker changes and the pkg (for the binary) changes.