Make Zigbee Adapter v0.23 available when running Node.js 20

[benfrancis]

Make Zigbee Adapter 0.23 available, but only for gateways running Node.js 20.

Note: Excludes Darwin because addon-builder currently broken on macOS.

[benfrancis]

I wanted to make this only available to gateway version 2.0.0-alpha.1 and above, but that's a bit tricky without also making the adapter completely unavailable to 1.x versions of the gateway.

• The regex used in the automatic checks in addon-list doesn't allow pre-release semver versions
• If I set the minimum version to 2.0.0 I don't think it will be visible for a gateway running 2.0.0-alpha.1 or 2.0.0-beta.1 because it will evaluate as being not a new enough gateway version
• If I set the minimum version as 2.0.0 in the addon-list only for gateways running node.js 20, the minimum version in the list won't match the minimum version in package.json
• If I change the minimum gateway version in package.json to 2.0.0 then 1.x gateways won't be able to install the zigbee-addon

Therefore setting the minimum gateway version to 1.0.0 but requiring Node.js 20 (aka 115), it will allow the new version of the add-on to be installed on any gateway 1.0.0 and above running Node.js 20. Given gateway 1.0.0 doesn't work with Node.js 20 I think it's safe to rely on that, until such a time as we can deprecate 1.x.