Pins moto to 2.2.7

- moto 2.2.8 and above is currently broken with sqs
- adds output queue sample data for etd (not sure if we'll want to keep this or not, but pushing branch to allow for discussion)

To load sample data for etd testing:
- in this repo
- confirm .env has SQS_ENDPOINT_URL='http://localhost:5000'
- pipenv run moto_server sqs
- pipenv run submitter create-queue etd-test-output
- pipenv run submitter sample-output-data-loader --queue=etd-test-output

in etd .env
SQS_INPUT_QUEUE_URL=http://localhost:5000/123456789012/etd-test-input
SQS_OUTPUT_QUEUE_NAME=etd-test-output
SQS_OUTPUT_QUEUE_URL=http://localhost:5000/123456789012/etd-test-output

- rails c
- DspacePublicationResultsJob.perform_now

Pipfile

@@ -14,7 +14,7 @@ flake8 = "*"
 black = "==21.7b0"
 isort = "*"
 bandit = "*"
-moto = {extras = ["s3", "server", "sqs"], version = "*"}
+moto = {extras = ["s3", "server", "sqs"], version = "==2.2.7"}
 pytest = "*"
 coveralls = "*"
 requests-mock = "*"