fix(manager-restore): pindown awscli version
fix(manager-restore): pindown awscli version

since https://github.com/boto/boto3/issues/2596 we got the following error:
```
ImportError: cannot import name 'docevents'
```

scylladb/scylla-cluster-tests,scylladb/scylla-cluster-tests,scylladb/scylla-cluster-tests,scylladb/scylla-longevity-tests,scylladb/scylla-longevity-tests,scylladb/scylla-cluster-tests,scylladb/scylla-longevity-tests,scylladb/scylla-cluster-tests