fix: `invoice.verifyURL` undefined from lnurl processor getInvoice

[flxxyz]

Description

lnurl payment processor, cannot be found when looking for invoice

Motivation and Context

an error occurred while debugging lnurl payment

Screenshots (if appropriate):

Types of changes

• [ ] Non-functional change (docs, style, minor refactor)
• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my code changes.
• [ ] All new and existing tests passed.

[coveralls]

Pull Request Test Coverage Report for Build 5120479666

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.8%) to 54.017%

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Totals
Change from base Build 5091169377:	-0.8%
Covered Lines:	1184
Relevant Lines:	2169

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💛 - Coveralls

[github-actions[bot]]

:tada: This PR is included in version 1.26.0 :tada:

The release is available on GitHub release

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