Tests fail for cache tests with PR #36

[radicaldrew]

currently mysql would only be supported with current code.
current code is not compatible with Sequelize orm

PR 36

not ok 50 remains in cache before next TTL 30sec

operator: ok
expected: true
actual:   false
at: Test.<anonymous> (/home/projects/db-helpers/test/cache.js:108:7)
stack: |-
  Error: remains in cache before next TTL 30sec
      at Test.assert [as _assert] (/home/projects/db-helpers/node_modules/tape/lib/test.js:304:54)
      at Test.bound [as _assert] (/home/projects/db-helpers/node_modules/tape/lib/test.js:91:32)
      at Test.assert (/home/projects/db-helpers/node_modules/tape/lib/test.js:423:10)
      at Test.bound [as ok] (/home/projects/db-helpers/node_modules/tape/lib/test.js:91:32)
      at Test.<anonymous> (/home/projects/db-helpers/test/cache.js:108:7)
      at process.processTicksAndRejections (node:internal/process/task_queues:95:5)