Internal server error if user specifies a valid start token from a different query

[jtherrmann]

Jira: https://asfdaac.atlassian.net/browse/TOOL-2079

Per @asjohnston-asf, if given a valid start token from a different query, the /jobs endpoint returns a 500 error:

https://hyp3-api.asf.alaska.edu/jobs?user_id=asjohnston&start_token=eyJqb2JfaWQiOiAiNDI4YTVmNzgtY2NiMi00NTJmLThkNmEtZDQ2NGQ1N2I3NTU2IiwgInVzZXJfaWQiOiAid2FuZ3d4MjAiLCAicmVxdWVzdF90aW1lIjogIjIwMjMtMDYtMDZUMDI6NDY6NDArMDA6MDAifQ%3D%3D

Traceback (most recent call last):
  File "/var/task/flask/app.py", line 2529, in wsgi_app
    response = self.full_dispatch_request()
  File "/var/task/flask/app.py", line 1825, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/var/task/flask_cors/extension.py", line 165, in wrapped_function
    return cors_after_request(app.make_response(f(*args, **kwargs)))
  File "/var/task/flask/app.py", line 1823, in full_dispatch_request
    rv = self.dispatch_request()
  File "/var/task/flask/app.py", line 1799, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
  File "/var/task/flask/views.py", line 107, in view
    return current_app.ensure_sync(self.dispatch_request)(**kwargs)
  File "/var/task/openapi_core/contrib/flask/views.py", line 26, in dispatch_request
    return decorator(super(FlaskOpenAPIView, self).dispatch_request)(
  File "/var/task/openapi_core/validation/decorators.py", line 33, in decorated
    response = self._handle_request_view(
  File "/var/task/openapi_core/contrib/flask/decorators.py", line 31, in _handle_request_view
    return super(FlaskOpenAPIViewDecorator, self)._handle_request_view(
  File "/var/task/openapi_core/validation/decorators.py", line 47, in _handle_request_view
    return view(*args, **kwargs)
  File "/var/task/flask/views.py", line 188, in dispatch_request
    return current_app.ensure_sync(meth)(**kwargs)
  File "/var/task/hyp3_api/routes.py", line 148, in get
    return jsonify(handlers.get_jobs(
  File "/var/task/hyp3_api/handlers.py", line 58, in get_jobs
    jobs, last_evaluated_key = dynamo.jobs.query_jobs(user, start, end, status_code, name, job_type, start_key,
  File "/var/task/dynamo/jobs.py", line 128, in query_jobs
    response = table.query(**params)
  File "/var/task/boto3/resources/factory.py", line 580, in do_action
    response = action(self, *args, **kwargs)
  File "/var/task/boto3/resources/action.py", line 88, in __call__
    response = getattr(parent.meta.client, operation_name)(*args, **params)
  File "/var/task/botocore/client.py", line 530, in _api_call
    return self._make_api_call(operation_name, kwargs)
  File "/var/task/botocore/client.py", line 964, in _make_api_call
    raise error_class(parsed_response, operation_name)
botocore.exceptions.ClientError: An error occurred (ValidationException) when calling the Query operation: The provided starting key is outside query boundaries based on provided conditions