test: Add benchmarks for KMS signer #2021

Job	Run time
Determine Image Tag	2s
proto / buf-check	12s
test / Build All ev-node Binaries	1m 38s
test / Run Integration Tests	2m 11s
lint / goreleaser-check	21s
test / Go Mod Tidy Check	38s
test / Run Unit Tests	3m 37s
lint / golangci-lint	1m 26s
lint / markdown-lint	28s
lint / hadolint	19s
lint / yamllint	8s
docker / Build ev-node-grpc	18m 46s
docker / Build ev-node-testapp	19m 17s
docker / Build ev-node-evm	20m 15s
test / Run E2E System Tests	13m 15s
test / Run EVM Execution Tests	2m 14s
test / Combine and Upload Coverage	11s
docker-tests / Docker E2E Tests	4m 57s
docker-tests / Docker Compatibility E2E Tests	2m 51s
docker-tests / Docker Upgrade E2E Tests	1m 55s
	1h 34m 41s

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