fix(core): properly chain grpc-gateway middleware order (#1820) #6907

Job	Run time
integration tests	4m 40s
image build	1m 50s
go (examples)	49s
benchmark tests	4m 30s
go (sdk)	1m 43s
otdfctl e2e tests	5m 17s
go (service)	3m 10s
Protocol Buffer Lint and Gencode Up-to-date check	18s
go (lib/ocrypto)	42s
license check	51s
go (lib/fixtures)	32s
go (lib/flattening)	44s
platform-xtest / cross-client-test	8m 43s
ci	1s
	33m 50s

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