feat: add exact minimum balance to upkeeps query

[gosuto-inzasheru]

add minimum_balance column to https://dune.com/queries/3889683

  /**
   * @dev calculates LINK paid for gas spent plus a configure premium percentage
   */
  function _calculatePaymentAmount(
    uint256 gasLimit,
    uint256 gasWei,
    uint256 linkEth
  ) private view returns (uint96 payment) {
    uint256 weiForGas = gasWei * (gasLimit + REGISTRY_GAS_OVERHEAD);
    uint256 premium = PPB_BASE + s_storage.paymentPremiumPPB;
    uint256 total = ((weiForGas * (1e9) * (premium)) / (linkEth)) + (uint256(s_storage.flatFeeMicroLink) * (1e12));
    if (total > LINK_TOTAL_SUPPLY) revert PaymentGreaterThanAllLINK();
    return uint96(total); // LINK_TOTAL_SUPPLY < UINT96_MAX
  }