refactor: move testdata from pkg to testutil

[jasonmokk]

Description

This PR moves the testdata package from pkg into testutil since it is a test-related package.

Closes: #2292

Type of change

• 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 not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Include instructions and any relevant details so others can reproduce.

• Tested CCTX in localnet
• Tested in development environment
• Go unit tests
• Go integration tests
• Tested via GitHub Actions

Checklist:

• I have added unit tests that prove my fix feature works

[lumtis]

LGTM
Thanks for the contribution!

Note @jasonmokk : would be good to ask on the issue first to be assigned to it. We generally assign issue for interested contributors, this is to ensure people are not working simultaneously on the same thing

[jasonmokk]

LGTM Thanks for the contribution!

Note @jasonmokk : would be good to ask on the issue first to be assigned to it. We generally assign issue for interested contributors, this is to ensure people are not working simultaneously on the same thing

Got it, my apologies. Next time I'll make sure to comment on the issue/get assigned first before working on it.

[skosito]

lgtm, @lumtis should we approve and run all workflows before merging?

[lumtis]

@jasonmokk seems like there are some tests with the location not updated: https://github.com/zeta-chain/node/actions/runs/9347664708/job/25725129231?pr=2296

[jasonmokk]

@jasonmokk seems like there are some tests with the location not updated: zeta-chain/node/actions/runs/9347664708/job/25725129231?pr=2296

Thanks for the feedback, I've corrected the package location in the failing tests.

[lumtis]

Thanks for the contribution!