feat: add tests workflow for bun and deno

[nazarhussain]

Motivation

Make the packages compatible with Deno+Bun.

Description

• Make unit tests compatible with Deno+Bun
• Make spec tests compatible with Deno+Bun

Steps to test or reproduce

• Run all tests

[twoeths]

while I see the improvement on the source code, like not to import lib from other modules, I don't see why do we have to pick Deno and make sure lodestar to be compliant to it? there are a lot of deno specific resources added in this PR

I guess we need to put this on hold until we have final approach on which javascript runtime that lodestar want to experiment ChainSafe/lodestar#7237

[nazarhussain]

while I see the improvement on the source code, like not to import lib from other modules, I don't see why do we have to pick Deno and make sure lodestar to be compliant to it? there are a lot of deno specific resources added in this PR

Deno is needed/recommended to publish packages to jsr.io which is intention to test with deno first in this PR.

And here is the details that why I am moving to support jsr.io https://jsr.io/docs/why

[twoeths]

Does Bun support jsr.io?

if yes I'd go with Bun as we'll most likely to go with it. Again, need to wait for the final decision on ChainSafe/lodestar#7237

if both NodeJS + Bun don't support jsr.io, only Deno does then we need to see if it's a must to support jsr.io. I found it weird to target Bun/NodeJS while having Deno specific resources in the repo

[nazarhussain]

Does Bun support jsr.io?

jsr.io is a registry developed and maintained by Bun for typescript based packages. As it follow modern standards it's compatible with all runtimes. As it's mentioned on there website.

JSR modules can be used in Node.js, Deno, Bun, Cloudflare Workers, and more.