satellite/coinpayments: Reduce update interval to 2 minutes

[littleskunk]

What: Reduce the coinpayment update interval from 30 minutes to 2 minutes.

Why: Customers are creating support tickets because the transaction is confirmed but for 30 minutes we didn't allow them to create a project. We are going to change that with a hotfix. This PR is to make sure we also fix the default value and I want to reference this PR in the hotfix.

Please describe the tests:

• Test 1:
• Test 2:

Please describe the performance impact:

Code Review Checklist (to be filled out by reviewer)

• NEW: Are there any Satellite database migrations? Are they forwards and backwards compatible?
• Does the PR describe what changes are being made?
• Does the PR describe why the changes are being made?
• Does the code follow our style guide?
• Does the code follow our testing guide?
• Is the PR appropriately sized? (If it could be broken into smaller PRs it should be)
• Does the new code have enough tests? (every PR should have tests or justification otherwise. Bug-fix PRs especially)
• Does the new code have enough documentation that answers "how do I use it?" and "what does it do?"? (both source documentation and higher level, diagrams?)
• Does any documentation need updating?
• Do the database access patterns make sense?