feat: spam tokens API function

[abdulhaseeb4239]

🔘 PR Type

What kind of change does this PR introduce?

• Bugfix
• Enhancement
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

📜 Background

Add a function to call spam tokens API

Issue Link: https://linear.app/xverseapp/issue/ENG-3680/add-spam-tokens-api-xverse-core

🔄 Changes

Does this PR introduce a breaking change?

• Yes, Incompatible API changes
• No, Adds functionality (backwards compatible)
• No, Bug fixes (backwards compatible)

Changes:

• Just added a function to call the spam tokens API
• No breaking changes

✅ Review checklist

Please ensure the following are true before merging:

• Code Style is consistent with the project guidelines.
• Code is readable and well-commented.
• No unnecessary or debugging code has been added.
• Security considerations have been taken into account.
• The change has been manually tested and works as expected.
• Breaking changes and their impacts have been considered and documented.
• Code does not introduce new technical debt or issues.

[github-actions]

Test this PR with npm i --save-exact @secretkeylabs/[email protected]