fix: check total protocol fee for gyro pools

[gosuto-inzasheru]

closes BalancerMaxis/bal_addresses#442

[gosuto-inzasheru]

needs BalancerMaxis/bal_addresses#450 merged first in order to test properly

[gosuto-inzasheru]

ok ran it on top of that branch, result in core_pools.json looks great:

[gosuto-inzasheru]

0x46472cba35e6800012aa9fcc7939ff07478c473e00020000000000000000056c does get recognised as a core pool since it has collected protocol fees:

{
  "data": {
    "pools": [
      {
        "symbol": "ECLP-GHO-AUSDC",
        "priceRateProviders": [
          {
            "address": "0x87cd462a781c0ca843eab131bf368328848bb6fd"
          },
          {
            "address": "0x0000000000000000000000000000000000000000"
          }
        ],
        "totalLiquidity": "5524978.078679728331091983020822088",
        "protocolYieldFeeCache": null,
        "swapFee": "0.0001",
        "poolType": "GyroE",
        "poolTypeVersion": 2,
        "totalProtocolFee": "1888.157573909738882107340607911349",
        "totalProtocolFeePaidInBPT": "2184.364070426271530776"
      }
    ]
  }
}

[gosuto-inzasheru]

this might be due to fees previously having been in place and later set to 0. we might be able to filter out such edge cases when migrating the whole query to apiv3, for now not worth it to do so on the old core subgraph