Updating the TS SDK to 1.2.4 and fixing incorrectly required insert_schema field in mutations

[sordina]

Previously required format:

curl http://localhost:8100/mutation -H 'content-type: application/json' -d '{"insert_schema":[],"operations":[{"type":"procedure","name":"hello","arguments":{}}],"collection_relationships":{}}' -vvv | jq .

Now supports:

curl http://localhost:8100/mutation -H 'content-type: application/json' -d '{"operations":[{"type":"procedure","name":"hello","arguments":{}}],"collection_relationships":{}}' -vvv | jq .

This was brought to our attention by @soorajshankar who found that the engine was no longer sending through the insert_schema field and the SDK validation was throwing an error.

Follow up actions:

• Improve SDK logging to output exact validation failures to logs to more easily identify this kind of issue

[soorajshankar]

LGTM
Thanks Lyndon!