chore(db-mongodb): tsconfig uses strict: true and noUncheckedIndexedAccess: true (#11444)

Migrates the `db-mongodb` package to use `strict: true` and
`noUncheckedIndexedAccess: true` TSConfig properties.
This greatly improves code quality and prevents some runtime errors or
gives better error messages.

test/queues/int.spec.ts

@@ -1129,7 +1129,6 @@ describe('Queues', () => {
     expect(jobAfterRun.input.amountTask1Retried).toBe(0)
   })
 
-
   it('ensure jobs can be cancelled using payload.jobs.cancelByID', async () => {
     payload.config.jobs.deleteJobOnComplete = false
 
@@ -1201,7 +1200,7 @@ describe('Queues', () => {
     expect(jobAfterRun.error?.cancelled).toBe(true)
     expect(jobAfterRun.processing).toBe(false)
   })
-  
+
   it('can tasks throw error', async () => {
     payload.config.jobs.deleteJobOnComplete = false