chore(dashmate): update config for testnet-26

[strophy]

Issue being fixed or feature implemented

Testnet will be redeployed with breaking changes

What was done?

Generate new genesis and update core image

How Has This Been Tested?

This cannot be tested until testnet-26 is deployed on testnet

Breaking Changes

None

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have added "!" to the title and described breaking changes in the corresponding section if my code contains any
• I have made corresponding changes to the documentation if needed

For repository code-owners and collaborators only

• I have assigned this pull request to a milestone

[shumkov]

👍

[shumkov]

👍