[BUG] Data Prepper starts without a source

Describe the bug
I started data prepper with a generic log pipeline that used AWS ACM certificate provider for the HTTP log source. However, I gave an incorrect certificate ARN that data prepper was unable to use. Data prepper still came up successfully however I was unable to send log data because the http source was not running.

2022-09-28T10:27:51.174-05:00 | CopyException retrieving the certificate with arn: arn:aws:acm:us-east-1:123456789012:certificate/someCertificate 
2022-09-28T10:27:51.174-05:00 | software.amazon.awssdk.services.acm.model.ResourceNotFoundException: Could not find certificate arn:aws:acm:us-east-1:123456789012:certificate/someCertificate . (Service: Acm, Status Code: 400, Request ID: 73995789-64ce-4e90-9c3c-20649fd6cdac)
2022-09-28T10:27:51.174-05:00 | at software.amazon.awssdk.core.internal.http.CombinedResponseHandler.handleErrorResponse(CombinedResponseHandler.java:125) ~[data-prepper-core-1.5.0.jar:1.5.0]
...
2022-09-28T10:27:51.180-05:00 | at com.amazon.dataprepper.plugins.certificate.acm.ACMCertificateProvider.getCertificate(ACMCertificateProvider.java:90) ~[data-prepper-core-1.5.0.jar:1.5.0]
2022-09-28T10:27:51.180-05:00 | at com.amazon.dataprepper.plugins.source.loghttp.HTTPSource.start(HTTPSource.java:83) ~[data-prepper-core-1.5.0.jar:1.5.0]
...
2022-09-28T10:27:51.189-05:00 | Data Prepper server running at :4900

To Reproduce
PipelineConfiguration.yaml snippet:

log-pipeline:
 source:
    http:
      acm_certificate_arn: "arn: arn:aws:acm:us-east-1:123456789012:certificate/someCertificate "
      aws_region: "us-east-1"
      port: 21890
      use_acm_certificate_for_ssl: true
      ssl: true
      authentication:
        ...
  processor: ...

Expected behavior
I expected data prepper to fail to start if there is no source. Running data prepper without a source is useless. This may not be different if data prepper would support multiple sources.

Additional context
This is similar to: #936

Start with ACMCertificateProvider.java and HTTPSource.java, the entry points named in the stack trace, and trace how the certificate failure is handled during startup. Check the server startup path next. Done means Data Prepper does not report a running server when the HTTP source cannot start because its certificate is unavailable.