Request price at block instead of the latest price

[pouya-eghbali]

No description provided.

[what-the-diff]

PR Summary

• Version Upgrade
  The software version was upgraded from "0.11.0" to "0.11.1" as denoted in the 'root.go' file. This usually signifies minor fixes, improvements or new small features.

• Addition of Import Statement
  A new import statement for go-ethereum/accounts/abi/bind has been added to 'uniswap.go'. This signifies a newly added capability to bind Ethereum contract ABI (Application Binary Interface), which may provide additional Ethereum-related functionality.

• Modification of Function Call
  In the GetPriceFromPair function located in the 'uniswap.go' file, there was a modification to a function call Slot0. A new parameter bind.CallOpts has been added, which includes a field BlockNumber. This may help to specify specific details or options when making the call, potentially yielding more accurate or efficient results.