nancy: add files .nancy-ignore

[zzzckck]

Description

Detected Nancy failure:

pkg:golang/github.com/btcsuite/btcd/btcec/[email protected]
1 known vulnerabilities affecting installed version 
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ [CVE-2024-34478] CWE-754: Improper Check for Unusual or Exceptional Conditions                                                                                                                                                   ┃
┣━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫
┃ Description        ┃ btcd before 0.24.0 does not correctly implement the consensus rules                                                                                                                                         ┃
┃                    ┃ outlined in BIP 68 and BIP 112, making it susceptible to consensus                                                                                                                                          ┃
┃                    ┃ failures. Specifically, it uses the transaction version as a signed integer                                                                                                                                 ┃
┃                    ┃ when it is supposed to be treated as unsigned. There can be a chain split                                                                                                                                   ┃
┃                    ┃ and loss of funds.                                                                                                                                                                                          ┃
┣━━━━━━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫

But the vulnerability is BTC only, BSC does not have the issue, prefer not to upgrade the version of btcd.
So add the .nancy-ignore to ignore it.

Rationale

tell us why we need these changes...

Example

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Changes

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