docs: fix invalid link README.md #61

Job	Run time
go_sec_covenant_signer	1m 10s
lint_test / check-mock-gen	0s
lint_test / integration-tests	8m 36s
lint_test / build	37s
lint_test / gosec	2m 37s
lint_test / lint	3m 34s
lint_test / unit-tests	1m 1s
docker_pipeline_covenant_signer / prepare-metadata	1s
docker_pipeline_covenant_signer / dockerfile_lint	17s
docker_pipeline_covenant_signer / docker_build (linux/amd64, ubuntu-24.04)	1m 32s
docker_pipeline_covenant_signer / docker_build (linux/arm64, ubuntu-24.04-arm64)	1m 29s
docker_pipeline_covenant_signer / merge_ecr	19s
docker_pipeline_covenant_signer / merge_dockerhub	10s
docker_pipeline_covenant_signer / vulnerability_scan	25s
docker_pipeline / prepare-metadata	1s
docker_pipeline / dockerfile_lint	18s
docker_pipeline / docker_build (linux/amd64, ubuntu-24.04)	3m 18s
docker_pipeline / docker_build (linux/arm64, ubuntu-24.04-arm64)	3m 29s
docker_pipeline / merge_dockerhub	16s
docker_pipeline / merge_ecr	19s
docker_pipeline / vulnerability_scan	29s
	29m 58s

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