[LG-1488] Move account reset notice into job_configurations.

[brodygov]

As part of LG-1488 / LG-1113, move the account reset email notification job out of
the recurring job controllers and into the built-in app job
configurations.

Also add timestamps to the default development.log/production.log
output. Previously this log had no timestamps, which made it extremely
difficult to follow time-sensitive logs.

Why: We are moving away from triggering recurring jobs via lambdas
to instead run long-running background jobs using the
idp-jobs/job_configurations.rb framework, which allows each idp server
to pull jobs and run them as needed, without any external moving parts.

This makes adding a new recurring job entirely self-contained within the
identity-idp repo, so no interaction with AWS or lambdas or terraform or
any other repos is needed.

How:

• Remove lib/lambdas/account_reset_lambda.rb.
• Add a new job configuration for the account reset email job to
  config/initializers/job_configurations.rb, running every 5 minutes.
• Change the deprecated account reset controller to return HTTP 410, to
  indicate that the endpoint should not be used.
• Add tests of all the job_configurations.rb and fix tests for the
  changes.
• Add two new log formatter classes, and set them as the Rails.config.log_formatter.

[brodygov]

I tested this in my personal environment. Account reset notifications started flowing as expected.

The jobs are showing up beautifully in New Relic.

Health checks also appear to work as expected.

$ curl -sS https://idp.brody.identitysandbox.gov/api/health | jq

{
  "statuses": {
    "database": {
      "healthy": true,
      "result": [
        1
      ]
    },
    "account_reset": {
      "healthy": true,
      "result": null
    },
    "job_runner": {
      "healthy": true,
      "result": {
        "Send GPO letter": true,
        "Account reset notice": true
      }
    }
  },
  "healthy": true,
  "all_checks_healthy": true
}

[achapm]

assuming that we are OK to launch this without analytics, 👍 LGTM