`graph init` wrongly initialises Polygon ZkEvm Testnet

[itsjerryokolo]

Which packages are impacted by your issue?

@graphprotocol/graph-cli

Describe the issue

Polygon ZkEvm Testnet is not yet supported by The Graph, but this network is available on the graph-cli can be successfully initialised like we support it. This results in error during deployment.

Reproduction

nil

Steps to Reproduce the Bug or Issue

Expected behavior

Probably have the network hidden temporarily, or throw an error that indicates the network isn't supported

Screenshots or Videos

No response

Platform

• OS: macOS 13.3.1
• NodeJS: v18.16.0
• "@graphprotocol/graph-cli": "0.49.0", "@graphprotocol/graph-ts": "0.29.1"

Subgraph Manifest

No response

Subgraph GraphQL Schema

No response

Additional context

No response