Indexer 3.0.0 release does not have version set

[Will Winder]

Subject of the issue

The version is not being properly set.

From the binary release:

./algorand-indexer -v
-dev.unknown compiled at  from git hash

From the docker image health command:

curl "localhost:8980/health?pretty
{
  "data": {
    "migration-required": false,
    "read-only-mode": true
  },
  "db-available": true,
  "is-migrating": false,
  "message": "40",
  "round": 40,
  "version": "(unknown version)"
}

Expected behaviour

The version should be set