Improve code coverage

[fvarg00]

Currently code coverage has dropped a bit to 40%.

We would like code coverage using ginkgo tests to be around 70% or higher.

Ref: https://app.codecov.io/gh/guidewire-oss/fern-reporter?search=&displayType=list

[fvarg00]

Additional context for coverage

fern-reporter git:(main) ✗ make test
🧪 Running Tests...
github.com/guidewire/fern-reporter coverage: 0.0% of statements
github.com/guidewire/fern-reporter/pkg/api coverage: 0.0% of statements
ok github.com/guidewire/fern-reporter/config 0.609s coverage: 85.7% of statements
? github.com/guidewire/fern-reporter/pkg/graph [no test files]
? github.com/guidewire/fern-reporter/pkg/graph/modelv2 [no test files]
github.com/guidewire/fern-reporter/pkg/auth/mocks coverage: 0.0% of statements
github.com/guidewire/fern-reporter/pkg/graph/generated coverage: 0.0% of statements
github.com/guidewire/fern-reporter/pkg/graph/gen coverage: 0.0% of statements
github.com/guidewire/fern-reporter/pkg/db coverage: 0.0% of statements
ok github.com/guidewire/fern-reporter/pkg/api/handlers 0.873s coverage: 81.5% of statements
? github.com/guidewire/fern-reporter/pkg/models [no test files]
ok github.com/guidewire/fern-reporter/pkg/api/routers 2.217s coverage: 100.0% of statements
ok github.com/guidewire/fern-reporter/pkg/auth 0.994s coverage: 43.5% of statements
ok github.com/guidewire/fern-reporter/pkg/graph/resolvers 2.646s coverage: 100.0% of statements
ok github.com/guidewire/fern-reporter/pkg/utils 1.886s coverage: 100.0% of statements