Refactor complex implementation in validate-processor.ts

[samayer12]

Describe what should be investigated or refactored

Resolve the following linter warning:
15:8 warning Async function 'validateProcessor' has a complexity of 13. Maximum allowed is 10 complexity

Links to any relevant code

Check out src/lib/validate-processor.ts

Additional context

Related to #1248

[samayer12]

validate-processor.ts is largely untested on main. We'll want to back-fill with some unit tests so that we can confidently refactor. This will provide a faster feedback loop instead of waiting for E2E tests to run.

File                  | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s
validate-processor.ts |   14.28 |        0 |       0 |   14.28 | 22-85

[samayer12]

Unstarting this track of work in favor of v0.40.0 milestones.