bump relayer and use latest grpc #1630

Job	Run time
e2e-docker-build-e2e-init-chain	2m 42s
e2e-docker-build-babylon	3m 31s
proto_lint	26s
docker_pipeline / prepare-metadata	1s
lint_test / build	0s
lint_test / unit-tests	5m 57s
lint_test / check-mock-gen	0s
lint_test / integration-tests	0s
lint_test / lint	4m 51s
lint_test / gosec	0s
docker_pipeline / docker_build (linux/amd64, ubuntu-24.04)	3m 38s
docker_pipeline / docker_build (linux/arm64, ubuntu-24.04-arm64)	3m 48s
e2e-run-ibc-transfer	2m 21s
e2e-run-btc-staking	2m 14s
e2e-run-btc-rewards	2m 20s
e2e-run-btc-staking-pre-approval	2m 18s
e2e-run-btc-timestamping	2m 19s
e2e-run-upgrade-v1	0s
docker_pipeline / merge_ecr	0s
docker_pipeline / merge_dockerhub	0s
	36m 26s

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