(fix) naming get_connector_spec fix

[isreallee82]

Before submitting this PR, please make sure:

• Your code builds clean without any errors or warnings
• You are using approved title ("feat/", "fix/", "docs/", "refactor/")

A description of the changes proposed in the pull request:

Tests performed by the developer:

while working on hummingbot/gateway#316 noticed
curl tests work fine with balance and allowances
but I get error from the client

ValueError: not enough values to unpack (expected 2, got 1)

Due to naming convention client uses avalanche i.e Network as chain, making the split process not happen leading to a bug

Tips for QA testing:

[isreallee82]

cc @nikspz @fengtality

[fengtality]

From the code in this PR, you are just changing the name of the locally scoped chain variable to chain_name. That should have any impact outside of naming and I don't see how it can fix an error like ValueError: not enough values to unpack (expected 2, got 1) where it's related to arguments not being there or something like that.

[isreallee82]

updated:

@fengtality @nikspz after alitlle digging the iteration must have stopped on avalanche from SUPPORTED_CHAINS set, so its final result must have been Uniswap_avalanche_avalanche,

so I figured the reason why chain_name worked instead of chain was there was changes to arrangements in the set SUPPORTED_CHAINS which placed ethereum first on the iteration list

For chain

For chain_name

Either ways both solutions were buggy

I figured another solution on my latest commit
supported chains have no underscore I came up with this solution.
I am opened to corrections @fengtality

[isreallee82]

I think this approach is more simple and solves the problem @nikspz

[fengtality]

I think this approach is more simple and solves the problem @nikspz

Agreed!

[nikspz]

Test performed:

• Cloned and installed PR6992 and gateway latest development
• connected gateway uniswap_ethereum_arbitrum, pangolin_avalanche_avalanche, uniswapLP_ethereum_arbitrum, sushiswap_ethereum_mainnet, sushiswap_avalanche_avalanche, quickswap_polygon_mainnet
• checked balance successfully