chore(cd): update cd workflow (#78)

* use appropriate token name with granular access
* specify whether release is latest, beta, or rc (without this it will always default to latest)

update version for v23.0.0-rc1 (#77)

Merge pull request #51 from dgraph-io/apoorv/rel-v21.03.1

chore: release v21.03.1

Merge pull request #44 from dgraph-io/apoorv/rel-v21.03.0

chore: release v21.03.0

20.11.0

Merge pull request #37 from dgraph-io/apoorv/upgrade-lock-file-version

Upgrade version in lock file

Merge pull request #35 from dgraph-io/apoorv/rel-v20.07.2

Fix lint errors & bump version for release

Bump version, release 20.07.1

Bump version, release 20.07.1

What if we remove all nulls?