test(tron-wallet-snap): removed beforaEach from useCacheUntil tests

[gabrieledm]

Explanation

Refactor of tests under packages/tron-wallet-snap/src/caching/useCacheUntil.test.ts to remove the usage of beforeEach and follow the Unit Testing Guidelines

References

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them