Cloud migrations: store snapshots in the database (#108551)

* Cloud migrations: store snapshots in the database

* update github.com/grafana/grafana-cloud-migration-snapshot to v1.9.0

* make update-workspace

* use new field name in test

* return error after call to fmt.Errorf

* create methods for readability / fix session deletiong not deleting snapshots

* remove debugging changes

* update sample.ini

* update tests to include OrgID in ListSnapshotsQuery

* lint

* lint

* Update pkg/services/cloudmigration/cloudmigrationimpl/snapshot_mgmt.go

Co-authored-by: Matheus Macabu <macabu@users.noreply.github.com>

* remove TODO

* Update pkg/services/cloudmigration/cloudmigrationimpl/snapshot_mgmt.go

Co-authored-by: Matheus Macabu <macabu@users.noreply.github.com>

* remove one of the debug logs

---------

Co-authored-by: Matheus Macabu <macabu@users.noreply.github.com>

pkg/services/cloudmigration/gmsclient/inmemory_client.go

@@ -57,7 +57,7 @@ func (c *memoryClientImpl) StartSnapshot(_ context.Context, sess cloudmigration.
 	c.mx.Unlock()
 
 	return &cloudmigration.StartSnapshotResponse{
-		EncryptionKey:        publicKey[:],
+		GMSPublicKey:         publicKey[:],
 		SnapshotID:           snapshotUid,
 		MaxItemsPerPartition: 10,
 		Algo:                 "nacl",