Adapt to new fp btc pk format #1604

Job	Run time
e2e-docker-build-e2e-init-chain	2m 37s
e2e-docker-build-babylon	2m 39s
proto_lint	24s
docker_pipeline / prepare-metadata	1s
lint_test / check-mock-gen	0s
lint_test / build	0s
lint_test / gosec	0s
lint_test / integration-tests	0s
lint_test / lint	1m 22s
lint_test / unit-tests	5m 6s
docker_pipeline / docker_build (linux/amd64, ubuntu-24.04)	3m 8s
docker_pipeline / docker_build (linux/arm64, ubuntu-24.04-arm64)	2m 52s
e2e-run-btc-timestamping	2m 50s
e2e-run-btc-staking-pre-approval	2m 55s
e2e-run-ibc-transfer	2m 30s
e2e-run-btc-staking	3m 26s
e2e-run-upgrade-v1	0s
docker_pipeline / merge_dockerhub	0s
docker_pipeline / merge_ecr	0s
	29m 50s

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