test(x/ecocredit): add tests for basket events

[technicallyty]

Description

• adds event checks to basket submodule

ref: #1237

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Author Checklist

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please add links to any relevant follow up issues.

I have...

• included the correct type prefix in the PR title
• added ! to the type prefix if API or client breaking change
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• provided a link to the relevant issue or specification
• followed the guidelines for building modules
• included the necessary unit and integration tests
• added a changelog entry to CHANGELOG.md
• included comments for documenting Go code
• updated the relevant documentation or specification
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Reviewers Checklist

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I have...

• confirmed the correct type prefix in the PR title
• confirmed ! in the type prefix if API or client breaking change
• confirmed all author checklist items have been addressed
• reviewed state machine logic
• reviewed API design and naming
• reviewed documentation is accurate
• reviewed tests and test coverage
• manually tested (if applicable)

[technicallyty]

needed to set the module address within some of the tests, so had to switch the test package to access the unexported keeper fields.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (main@dfec263). Click here to learn what that means.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #1408   +/-   ##
=======================================
  Coverage        ?   75.32%           
=======================================
  Files           ?      223           
  Lines           ?    20829           
  Branches        ?        0           
=======================================
  Hits            ?    15689           
  Misses          ?     4185           
  Partials        ?      955           

Impacted Files	Coverage Δ
types/testutil/events.go	82.35% <100.00%> (ø)

[ryanchristo]

Updated the title. At the moment, we are using scope to refer to the go module. We can update the contributing guidelines if you think this should be different although x/ecocredit/basket is a bit misleading here because x/ecocredit/server/basket is the package that is being updated. I think we should stick with the go module but open to discuss.

[ryanchristo]

LGTM