Bump ent (v0.12.4) and example app dependencies (#3166)

examples/go.mod

examples/go.sum

go.mod

go.sum

storage/ent/db/authcode/where.go

storage/ent/db/authcode_create.go

storage/ent/db/authrequest/where.go

storage/ent/db/authrequest_create.go

storage/ent/db/client.go

storage/ent/db/connector/where.go

storage/ent/db/connector_create.go

storage/ent/db/devicerequest/where.go

storage/ent/db/devicerequest_create.go

storage/ent/db/devicetoken/where.go

storage/ent/db/devicetoken_create.go

storage/ent/db/keys/where.go

storage/ent/db/keys_create.go

storage/ent/db/oauth2client/where.go

storage/ent/db/oauth2client_create.go

storage/ent/db/offlinesession/where.go