Support `in` , `not-in` , and `!=` query operators

[s-takehana]

in , not-in , and != query operators are new features introduced in cloud.google.com/go/datastore v1.8.0.

https://github.com/googleapis/google-cloud-go/blob/main/datastore/CHANGES.md#180-2022-06-21

Query.Filter is deprecated. https://pkg.go.dev/cloud.google.com/go/datastore#Query.Filter

I want to use the query operators via boom.

[s-takehana]

https://cloud.google.com/datastore/docs/concepts/queries#not-equal

Note: This features is available for Firestore in Datastore mode. It is not available for pre-migration Datastore databases.

https://cloud.google.com/sdk/gcloud/reference/beta/emulators/datastore/start

--use-firestore-in-datastore-mode Runs the emulator in Cloud Firestore in Datastore Mode. Reads are always strongly consistent and --consistency flag may not be specified.

[vvakame]

@s-takehana thanks to request. I just published v2.2.0. PTAL 🙏

[s-takehana]

@vvakame Thank you!