fix: show a different error on block time calculation if no block was… #74

	name: test
	on: [push]
	jobs:
	go-build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@master
	- uses: actions/setup-go@v2
	with:
	go-version: '1.21.3'
	- run: go version
	- run: go mod download
	- run: go build cmd/tmtop.go
	go-vet:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@master
	- uses: actions/setup-go@v2
	with:
	go-version: '1.21.3'
	- run: go version
	- run: go mod download
	- run: go vet ./...
	golangci:
	name: lint
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: golangci-lint
	uses: golangci/golangci-lint-action@v2
	with:
	args: --timeout 300s
	test:
	name: test
	runs-on: ubuntu-latest
	steps:
	- uses: actions/setup-go@v2
	with:
	go-version: '1.21.3'
	- name: Check out code into the Go module directory
	uses: actions/checkout@v2
	- name: Run tests
	run: go test -coverprofile coverage.txt -v ./...
	- name: Download uploader
	run: curl -Os https://uploader.codecov.io/latest/linux/codecov
	- name: Make uploader executable
	run: chmod +x codecov
	- name: Run uploader
	run: ./codecov

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